Common use of Initial Escrow Amount; Issuance of Escrow Receipts Clause in Contracts

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 128,071,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 136,066,000, for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 64,114,059 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 136,542,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 118,636,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Placement Agents to, and the Underwriters Placement Agents hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 47,937,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Placement Agents hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersPlacement Agents, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 823,071,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.. Escrow Agreement 2014-2A

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 96,000,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 150,371,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 220,103,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"), ”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 215,424,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 111,555,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 232,898,000, for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 328,260,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 64,492,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 74,140,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 22,338,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 292,750,000.00 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 124,958,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 620,095,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 82,366,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 150,696,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or 5 Escrow and Paying Agent Agreement (Class B) (American Airlines 2017-2 Aircraft EETC) transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 527,625,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 80,575,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 94,283,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 120,959,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 20,528,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 83,384,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon the Depositary's receipt (on behalf of the Escrow Agent) of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 209,036,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 134,937,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 132,732,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date) for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Placement Agents to, and the Underwriters Placement Agents hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 123,180,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Placement Agents hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersPlacement Agents, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 395,780,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final FINAL Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 262,857,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 57,021,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date), for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 199,518,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 266,046,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 252,254,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 256,143,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 296,445,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 541,746,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Purchaser to, and the Underwriters Purchaser hereby acknowledge acknowledges that on the date hereof they it shall, irrevocably deliver by wire transfer to the Depositary on behalf of the Escrow Agent, Agent an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 24,391,148.66 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Purchaser hereby instruct instructs the Escrow Agent, upon receipt of such sum from the UnderwritersPurchaser, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined belowin Section 1.04) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 568,796,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 45,882,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal pursuant to clause (d) of Section 1.2 hereof (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 536,811,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchaser to, and the Underwriters Initial Purchaser hereby acknowledge acknowledges that on the date hereof they it shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 63,953,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchaser hereby instruct instructs the Escrow Agent, upon receipt by the Depositary of such sum from the UnderwritersInitial Purchaser, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 757,825,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account 5 Escrow and Paying Agent Agreement (Class A) (American Airlines 2021-1 EETC) Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 70,619,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 756,762,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 173,629,000 (or such lesser amount equal to the Net Proceeds less amounts, if any, used to purchase Equipment Notes on the Issuance Date) for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.FINAL

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 293,944,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 268,208,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 131,670,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from 8 5 time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 58,426,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 697,731,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Underwriter to, and the Underwriters Underwriter hereby acknowledge acknowledges that on the date hereof they it shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 99,297,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Underwriter hereby instruct instructs the Escrow Agent, upon receipt by the Depositary of such sum from the UnderwritersUnderwriter, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"), ”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 185,418,000, for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 557,654,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Purchaser to, and the Underwriters Purchaser hereby acknowledge acknowledges that on the date hereof they it shall, irrevocably deliver by wire transfer to the Depositary on behalf of the Escrow Agent, Agent an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 89,886,351.34 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Purchaser hereby instruct instructs the Escrow Agent, upon receipt of such sum from the UnderwritersPurchaser, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined belowin Section 1.04) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 170,766,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date) for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 24,300,000 (plus such additional Net Proceeds, if any, not used to purchase Equipment Notes on the Issuance Date) for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 702,146,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 261,284,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 119,904,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 31,947,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal pursuant to clause (d) of Section 1.2 hereof (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 20,429,000, for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 116,500,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal pursuant to clause (d) of Section 1.2 hereof (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 366,432,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 5,502,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 289,358,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request Escrow and Paying Agent Agreement (Class A) (American Airlines 2019-1 Aircraft EETC) of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 134,644,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date) for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 736,647,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 150,000,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 117,852,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final FINAL Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 111,910,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 45,917,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 111,112,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 485,605,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 247,099,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver by wire transfer to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 201,901,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined belowin Section 1.04) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 202,065,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account 5 Escrow and Paying Agent Agreement (Class B) (American Airlines 2021-1 EETC) Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 197,777,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Escrow and Paying Agent Agreement (Class B) (American Airlines 2017-1 Aircraft EETC) Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver by wire transfer to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 36,740,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined belowin Section 1.04) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 567,360,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 109,858,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 111,093,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 353,689,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 257,965,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 176,753,000, for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 741,460,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.. 5 Escrow and Paying Agent Agreement (Class A) (American Airlines 2014-1 Aircraft EETC)

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 116,280,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Underwriter to, and the Underwriters Underwriter hereby acknowledge acknowledges that on the date hereof they it shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 311,010,000 (or such lesser amount equal to the Net Proceeds less amounts, if any, used to purchase Equipment Notes on the Issuance Date) for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Underwriter hereby instruct instructs the Escrow Agent, upon receipt of such sum from the UnderwritersUnderwriter, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 65,977,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt by the Depositary of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (each, an "“Escrow Receipt")” and, collectively, the “Escrow Receipts”) (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it such Escrow Receipt is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it such Escrow Receipt is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to affixed. No Escrow Receipt may be assigned or transferred except in connection with the distribution assignment or transfer of the Final Withdrawal (the "Final Distribution")Certificate to which such Escrow Receipt is affixed. After the Final Distributiontermination of the Deposit Agreement (or, if applicable, any Replacement Deposit Agreement), no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("DollarsDOLLARS") and immediately available funds equal to $56,000,000 385,766,000 (or such lesser amount equal to the Net Proceeds less amounts used to purchase Equipment Notes on the Issuance Date) for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow ReceiptESCROW RECEIPT"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow InterestESCROW INTEREST") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "RegisterREGISTER") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final DistributionFINAL DISTRIBUTION"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Initial Purchasers to, and the Underwriters Initial Purchasers hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 10,000,000.00 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Initial Purchasers hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersInitial Purchasers, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.time

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 491,135,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon the Depositary's receipt (on behalf of the Escrow Agent) of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("“Dollars"”) and immediately available funds equal to $56,000,000 286,718,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "“Escrow Receipt"”), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest ("the “Escrow Interest"”) in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "“Register"”) maintained by the Escrow Agent in the name of the same name and same manner as holder that is the holder of the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal or, if the Final Withdrawal Date is not a Regular Distribution Date and any Equipment Notes have been purchased by the Pass Through Trustee prior to such Final Withdrawal Date, the next succeeding Regular Distribution Date (the "“Final Distribution"”). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters Placement Agents to, and the Underwriters Placement Agents hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 300,254,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters Placement Agents hereby instruct the Escrow Agent, upon receipt of such sum from the UnderwritersPlacement Agents, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.

Initial Escrow Amount; Issuance of Escrow Receipts. The Escrow Agent hereby directs the Underwriters to, and the Underwriters hereby acknowledge that on the date hereof they shall, irrevocably deliver to the Depositary on behalf of the Escrow Agent, an amount in U.S. dollars ("Dollars") and immediately available funds equal to $56,000,000 150,203,000 for deposit on behalf of the Escrow Agent with the Depositary in accordance with Section 2.1 of the Deposit Agreement. The Underwriters hereby instruct the Escrow Agent, upon receipt of such sum from the Underwriters, to confirm such receipt by executing (by manual or facsimile signature) and delivering to the Pass Through Trustee an Escrow Receipt in the form of Exhibit A hereto (an "Escrow Receipt"), (a) to be affixed by the Pass Through Trustee to each Certificate and (b) to evidence the same percentage interest (the "Escrow Interest") in the Account Amounts (as defined below) as the Fractional Undivided Interest in the Pass Through Trust evidenced by the Certificate to which it is to be affixed. The Escrow Agent shall provide to the Pass Through Trustee for attachment to each Certificate newly issued under and in accordance with the Pass Through Trust Agreement an executed Escrow Receipt as the Pass Through Trustee may from time to time request of the Escrow Agent. Each Escrow Receipt shall be registered by the Escrow Agent in a register (the "Register") maintained by the Escrow Agent in the same name and same manner as the Certificate to which it is attached and may not thereafter be detached from such Certificate to which it is to be affixed prior to the distribution of the Final Withdrawal pursuant to clause (d) of Section 1.2 hereof (the "Final Distribution"). After the Final Distribution, no additional Escrow Receipts shall be issued and the Pass Through Trustee shall request the return to the Escrow Agent for cancellation of all outstanding Escrow Receipts.