Common use of Letter Agreements Clause in Contracts

Letter Agreements. 4.1 Remove and replace the Attachment A to Letter Agreement No. 6-1162-DME-0706R4, Purchase Right Aircraft, with a new Attachment A (attached hereto) to now reflect the exercise of twenty (20) purchase rights to become firmly contracted aircraft under this SA-10 and the addition of twenty (20) new additional purchase rights. 4.2 Remove and replace the letter agreement no. 6-1162-DME-0707, Advance Payment Matters, in its entirety, with the new letter agreement no. 6-1162-DME-0707R1, Advance Payment Matters, (attached hereto) in order to incorporate (i) a change to the advance payment deferral interest rate, (ii) the addition of an advance payment cap, and (iii) the addition of language concerning set-off rights. 4.3 Remove and replace the letter agreement no. 6-1162-DME-0824, Special Matters, in its entirety, and replace it with the new letter agreement no. 6-1162-DME-0824R1, Special Matters, (attached hereto) to incorporate the business considerations associated with the Tablet, Table 2, Table 3, and Table 4 aircraft. 4.4 Remove and replace Page 1 and Page 2 of letter agreement no. 6-1162-DME-0825, Market Risk - Escalation, with a new Page 1 and Page 2 and to also add the new Attachments A & B thereto (attached hereto) in order to incorporate the revised Table 3 and new Table 4 aircraft. The Purchase Agreement, Exhibits and Letter Agreements shall be deemed amended to the extent herein provided and as so amended shall continue in full force and effect. In the event of any inconsistency between the above provisions and those provisions contained in the Purchase Agreement, the terms of this Supplemental Agreement will govern and control. EXECUTED IN DUPLICATE as of the day and year first above written. By: Its Attorney-In-Fact By: /S/ Xxxxxxxx Xxxxxxxxxxx Witness /S/ Xxxxxxxx Xxxxxxxxx xx. Its ARTICLES NUMBER 1. Quantity, Model and Description 2. Delivery Schedule 3. Price

Letter Agreements. 4.1 Remove and replace the page 1, page 2, and Attachment A to Letter Agreement No. 6-1162-DME-0706R4DME-0706, Purchase Right Aircraft, with a new page 1, page 2, and Attachment A (attached hereto) to now reflect the exercise of twenty thirty (2030) purchase rights to become firmly contracted aircraft under this SA-10 and the addition of twenty thirty eight (2038) new additional unexercised purchase rightsrights creating a total of forty one (41) unexercised purchase rights (The Purchase Right aircraft) under this SA-5. 4.2 Remove and replace the letter agreement nopage 2 to Letter Agreement No. 6-1162-DME-0707, Advance Payment Matters, in its entirety, with a new page 2 (attached hereto) to reflect the new letter agreement norevision of the interest rate applicable to the deferred advance payments. 4.3 The Letter Agreement No. 6-1162-DME-0707R1DME-0712, Advance Payment Special Matters, (attached hereto) in order to incorporate (i) a change to is cancelled, removed from the advance payment deferral interest rate, (ii) the addition of an advance payment capAgreement, and (iii) the addition of language concerning set-off rights. 4.3 Remove and replace the letter agreement noreplaced with a new Letter Agreement No. 6-1162-DME-0824, Special Matters, in its entirety, and replace it with the new letter agreement no. 6-1162-DME-0824R1, Special Matters, (attached hereto) which now reflects Buyer and Boeing’s revised agreement concerning certain business and commercial terms and conditions pertaining to incorporate the business considerations associated with the Tablet, Table 2, Table 3, and Table 4 aircraftAgreement. 4.4 Remove and replace Page 1 and Page 2 of letter agreement noAdd the new Letter Agreement No. 6-1162-DME-0825, Market Risk - – Escalation, with a new Page 1 and Page 2 and to also add the new Attachments A & B thereto (attached hereto) in order to incorporate Buyer and Boeing’s agreement concerning future escalation of the revised Table 3 aircraft, engines, optional features, and new Table 4 aircraftany other business considerations that are subject to escalation. The Purchase Agreement, Exhibits and Letter Agreements shall be deemed amended to the extent herein provided and as so amended shall continue in full force and effect. In the event of any inconsistency between the above provisions and those provisions contained in the Purchase Agreement, the terms of this Supplemental Agreement will govern and control. EXECUTED IN DUPLICATE as of the day and year first above written. By: THE BOEING COMPANY By Its Attorney-In-Fact By: /S/ Xxxxxxxx Xxxxxxxxxxx Witness /S/ Xxxxxxxx Xxxxxxxxx xx. GOL FINANCE LLP By Its ARTICLES NUMBERWitnesses: 1. Quantity, Model and Description Description 2. Delivery Schedule 3. Price

Letter Agreements. 4.1 Remove and replace the page 1, page 2, and Attachment A A, to Letter Agreement No. 6-1162-DME-0706R4, Purchase Right AircraftRights, with a new page 1, page 2, and Attachment A (attached hereto) to now reflect the exercise of twenty thirty four (2034) purchase rights to become firmly contracted aircraft under this SA-10 SA-13 and the addition of twenty forty (2040) new additional purchase rights. 4.2 Remove and replace page 2 and page 3 of the letter agreement no. 6-1162-DME-0707, Advance Payment Matters, in its entirety, with the new letter agreement Letter Agreement no. 6-1162-DME-0707R1, Advance Payment Matters, with the new page 2 and page 3 (attached hereto) in order to incorporate (i) a change changes to terms and conditions regarding the advance payment deferral interest rate, (ii) the addition of an advance payment cap, and (iii) the addition of language concerning set-off rightscap amount. 4.3 Remove and replace the letter agreement Letter Agreement no. 6-1162-DME-0824DME-0824R1, Special Matters, in its entirety, and replace it with the new letter agreement no. 6-1162-DME-0824R1DME-0824R2, Special Matters, (attached hereto) to incorporate the business considerations associated with the Tablet, Table 2, Table 3, 5 and Table 4 6 aircraft.. PA2910 GOT SA-13 4.4 Remove and replace Page 1 and Page 2 of letter agreement noAdd the new Letter Agreement No. 6-1162-DME-0825DME-1104, Market Risk - EscalationBanded Fixed Escalation Program, with a new Page 1 01 April 2008 decision timing for Buyer to provide Boeing with written notification regarding the applicability of the terms and Page 2 conditions of this letter agreement to be (i) Table 5 and to also add Table 6 aircraft only or (ii) all aircraft in the entire Purchase Agreement No. 2910. 4.5 Add the new Attachments A & B thereto (attached hereto) Letter Agreement No. 6-1162-DME-1106, Aircraft Model Substitution, with its limited applicability to the Table 4, Table 5, and Table 6 aircraft. 4.6 Add the new Letter Agreement No. 6-1162-DME-1106, Promotional Support Agreement – Varig, in order to incorporate provide the revised Table 3 and described Boeing support of Customer's new Table 4 aircraftsubsidiary operation. The Purchase Agreement, Exhibits and Letter Agreements shall be deemed amended to the extent herein provided and as so amended shall continue in full force and effect. In the event of any inconsistency between the above provisions and those provisions contained in the Purchase Agreement, the terms of this Supplemental Agreement will govern and control. EXECUTED IN DUPLICATE as of the day and year first above written. By: By /s/ Its Attorney-In-Fact By: /S/ Xxxxxxxx Xxxxxxxxxxx Witness /S/ Xxxxxxxx Xxxxxxxxx xxGAC INC. By /s/ /s/ Its ARTICLES NUMBERIts PA2910 GOT SA-13 1. Quantity, Model and Description 2. Delivery Schedule Schedule 3. Price 4. Payment

Letter Agreements. 4.1 Remove Letter Agreement 2497-1R18, entitled “Option Aircraft,” is hereby deleted in its entirety and replace replaced with a revised Letter Agreement 2497-1R19 to reflect the Attachment A deletion of the Exercised Option Aircraft pursuant to this Supplemental Agreement. In addition, such Letter Agreement clarifies the language of paragraph 2.2, “Price Adjustments”. P.A. 2497 ASA SA-29-3 Supplemental Agreement No. 29 to Purchase Agreement No. 2497 4.2 Letter Agreement 2497-2R2, entitled “Aircraft Model Substitution,” is hereby deleted in its entirety and replaced with a revised Letter Agreement 2497-2R3, attached hereto, to clarify the language of paragraph 4, “Price, Escalation Adjustments and Advance Payments”. 4.3 Letter Agreement 6-1162-DME-0706R4MSA-597R22, Purchase Right Aircraft, entitled “Special Matters,” is hereby deleted in its entirety and replaced with a new Attachment A (attached hereto) to now reflect the exercise of twenty (20) purchase rights to become firmly contracted aircraft under this SA-10 and the addition of twenty (20) new additional purchase rights. 4.2 Remove and replace the letter agreement no. revised Letter Agreement 6-1162-DME-0707MSA-597R23, Advance Payment Mattersattached hereto, in its entirety, with the new to reflect that such letter agreement no. does not apply to the 737-990ER Aircraft [***]. 4.4 Letter Agreement 6-1162-DME-0707R1SCR-124R2, Advance Payment Matters, (attached hereto) entitled “[***]” is hereby deleted in order to incorporate (i) its entirety and replaced with a change to the advance payment deferral interest rate, (ii) the addition of an advance payment cap, and (iii) the addition of language concerning set-off rights. 4.3 Remove and replace the letter agreement no. revised Letter Agreement 6-1162-DME-0824SCR-124R3, attached hereto, to reflect the removal of the Subject Aircraft. The parties acknowledge that such Letter Agreement is an Order pursuant to the CSGTA and is described herein for informational purposes. 4.5 Letter Agreement ASA-PA-2497-LA-1208492, entitled “Aircraft Performance Guarantees,” is hereby deleted in its entirety and replaced with a revised Letter Agreement ASA-PA-2497-LA-1208492R1, attached hereto, to identify the applicable 737-990ER Aircraft. 4.6 Letter Agreement ASA-2497-LA-1209641, entitled “Special Matters, in its entirety, and replace it with the new letter agreement no. 6-1162-DME-0824R1, Special Matters, (,” attached hereto) , is hereby added to incorporate the business considerations associated Purchase Agreement and is applicable to all Aircraft with contract delivery months after December 31, 2012. Notwithstanding the Tabletpreceding sentence, Table 2, Table 3, and Table 4 aircraftsuch Letter Agreement does apply to the 737-990ER Aircraft delivering in [***]. 4.4 Remove and replace Page 1 and Page 2 of letter agreement no. 64.7 Letter Agreement ASA-1162PA-2497-DME-0825LA-1209478, Market Risk - Escalation, with a new Page 1 and Page 2 and to also add the new Attachments A & B thereto (entitled “737 Production Adjustments,” attached hereto) in order , is hereby added to incorporate the revised Table 3 and new Table 4 aircraft. The Purchase Agreement, Exhibits and Letter Agreements shall be deemed amended to the extent herein provided and as so amended shall continue in full force and effect. In the event of any inconsistency between the above provisions and those provisions contained in the Purchase Agreement, . * Indicates that certain information contained herein has been omitted and filed separately with the terms of this Securities and Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. P.A. 2497 ASA SA-29-4 Supplemental Agreement will govern and controlNo. EXECUTED IN DUPLICATE as of the day and year first above written29 to Purchase Agreement No. By: Its Attorney-In-Fact By: /S/ Xxxxxxxx Xxxxxxxxxxx Witness /S/ Xxxxxxxx Xxxxxxxxx xx. Its ARTICLES NUMBER 1. Quantity, Model and Description 2. Delivery Schedule 3. Price2497