Common use of Values to be Utilized in the Event of Unavailability Clause in Contracts

Values to be Utilized in the Event of Unavailability. 2.1 If the *** substantially revises the methodology used for the determination of the values to be used to determine the *** and *** values (in contrast to benchmark adjustments or other corrections of previously released values), or for any reason has not released values needed to determine the applicable Engine Price Adjustment, Rolls-Royce plc agrees to meet jointly with Boeing and the Customer (to the extent such parties may lawfully do so) prior to the delivery of any such Aircraft, to select a substitute from other *** data or similar data reported by *** organizations. Such substitute will result in the same adjustment, insofar as possible, as would have been calculated utilizing the original values adjusted for fluctuation during the applicable time period. However, if within *** after delivery of the Aircraft, the *** should resume releasing values for the months needed to determine the ***; such values will be used to determine any *** in the *** for the Engine from that determined at the time of delivery of the Aircraft. 2.2 Notwithstanding Article 2.1 above, if prior to the scheduled delivery month of an Aircraft the *** changes the *** for determination of the *** and *** values as defined above, such *** will be *** in the ***. 2.3 In the event escalation provisions are made non-enforceable or otherwise rendered void by any agency of the United States Government, the parties agree, to the extent they may lawfully do so, to *** the *** of any *** to *** an *** for *** or *** with the *** of *** of this *** in *** and *** since *** of the *** to the *** in ***. P.A. No. 3860 EE1-RR - 3 Rev.: 07/31/08 United Air Lines, Inc. XX Xxxxx 1000 Engines 2.4 If within *** of Aircraft delivery, the published index values are revised due to an acknowledged error by the ***, the Engine Price Adjustment will be *** (this does not include those values noted as preliminary by the ***). A *** or *** will be issued for the *** for the period of original invoice to issuance of *** or ***. Note: i. The values released by the *** and available to Boeing *** prior to the first day of the scheduled delivery month of an Aircraft will be used to determine the *** and *** values for the applicable months (including those noted as preliminary by the ***) to calculate the Engine Price Adjustment for the Aircraft invoice at the time of delivery. The values will be considered final and *** will be *** for any *** in ***, subject always to Pragraph 2.4 above.

Values to be Utilized in the Event of Unavailability. 2.1 If the *** substantially revises the methodology used for the determination of the values to be used to determine the *** and *** values (in contrast to benchmark adjustments or other corrections of previously released values), or for any reason has not released values needed to determine the applicable Engine Price Adjustment***, Rolls-Royce plc agrees to meet jointly with Boeing and the Customer (to the extent such parties may lawfully do so) will, prior to the delivery *** of any such Aircraft, to select a substitute from other *** data or similar data reported by *** organizations*. Such substitute will result in the same adjustment, insofar as possible, as would have been calculated utilizing the original values adjusted for fluctuation during the applicable time period. However, if within *** after delivery *** of the Aircraft, the *** *should resume releasing values for the months needed to determine the ***; such values * will be used to determine any *** or *** in the *** for the Engine from *** that determined *** at the time *** of delivery *** of the Aircraft***. 2.2 Notwithstanding Article 2.1 above, if prior to the scheduled delivery month of an Aircraft the *** changes the *** for determination of the *** and *** values as defined above, such *** will be *** in the ***. 2.3 In the event escalation provisions are made non-enforceable or otherwise rendered void by any agency of the United States Government, the parties agree, to the extent they may lawfully do so, to *** the *** of any *** to *** an *** for *** or *** with the *** of *** of this *** in *** and *** since *** of the *** to the *** price base year shown in ***. P.A. No. 3860 EE1-RR - 3 Rev.: 07/31/08 United Air Lines, Inc. XX Xxxxx 1000 Engines. 2.4 If within *** of Aircraft delivery***, the published index values are revised due to an acknowledged error by the ***, the Engine Price Adjustment *** will be *** (this does not include those values noted as preliminary by the ***). A *** or *** will be issued for the *** for the period of original invoice to issuance of *** or ***. Note: i. : (i) The values *** released by the *** and available to Boeing *** prior to the first day of the scheduled delivery month *** of an Aircraft will be used to determine the *** and *** values for the applicable months *** (including those noted as preliminary by the ***) to calculate the Engine Airframe Price Adjustment for the Aircraft invoice at the time *** of delivery***. The values *** will be considered final and *** will be *** for any *** in ***, * subject always to Pragraph 2.4 above***. (ii) The maximum number of digits to the right of the decimal after rounding utilized in any part of the Airframe Price Adjustment equation will be four (4), where rounding of the fourth digit will be increased to the next highest digit when the 5th digit is equal to five (5) or greater. UAL-PA-03776-Ex BFE2

Values to be Utilized in the Event of Unavailability. 2.1 If the *** substantially revises the methodology used for the determination of the values to be used to determine the *** and *** values (in contrast to benchmark adjustments or other corrections of previously released values), or for any reason has not released values needed to determine the applicable Engine Airframe Price Adjustment, Rolls-Royce plc agrees to meet jointly with Boeing and the Customer (to the extent such parties may lawfully do so) will, prior to the delivery of any such Aircraft, to select a substitute from other *** data or similar data reported by *** organizations. Such substitute will result in the same adjustment, insofar as possible, as would have been calculated utilizing the original values adjusted for fluctuation during the applicable time period. However, if within *** months after delivery of the Aircraft, the *** should resume releasing values for the months needed to determine the Airframe Price Adjustment, ***; such values * will be used to determine any *** or *** in the *** for the Engine *** from that determined *** at the time *** of delivery *** of the Aircraft.*** 2.2 Notwithstanding Article 2.1 above, if prior to the scheduled delivery month of an Aircraft the *** changes the *** for determination of the *** and *** values as defined above, such *** will be *** in the ***. 2.3 In the event escalation provisions are made non-enforceable or otherwise rendered void by any agency of the United States Government, the parties agree, to the extent they may lawfully do so, to *** the *** of any *** to *** an *** for *** or *** with the *** of *** of this *** in *** and *** since *** of the *** to the *** in ***. P.A. No. 3860 EE1-RR - 3 Rev.: 07/31/08 United Air Lines, Inc. XX Xxxxx 1000 Engines 2.4 If within *** of Aircraft delivery, the published index values are revised due to an acknowledged error by the ***Bureau of Labor Statistics, the Engine Airframe Price Adjustment will be *** (this does not include those values noted as preliminary by the ***). A *** or *** will be issued for the *** for the period of original invoice to issuance of *** or ***. * Note: i. : (i) The values released by the *** and available to Boeing *** prior to the first day of the scheduled delivery month of an Aircraft will be used to determine the *** and *** values for the applicable months (including those noted as preliminary by the ***) to calculate the Engine Airframe Price Adjustment for the Aircraft invoice at the time of delivery. The values will be considered final and *** will be *** for any *** in ***, subject always to Pragraph 2.4 above*** (ii) The maximum number of digits to the right of the decimal after rounding utilized in any part of the Airframe Price Adjustment equation will be four (4), where rounding of the fourth digit will be increased to the next highest digit when the 5th digit is equal to five (5) or greater. UAL-PA-03784-AE1 AE1 Page 4 This Supplemental Exhibit BFE1 contains supplier selection dates, on-dock dates and other requirements applicable to the Aircraft.

Values to be Utilized in the Event of Unavailability. 2.1 If the *** substantially revises the methodology used for the determination of the values to be used to determine the *** and *** values (in contrast to benchmark adjustments or other corrections of previously released values), or for any reason has not released values needed to determine the applicable Engine Airframe Price Adjustment, Rolls-Royce plc agrees to meet jointly with Boeing and the Customer (to the extent such parties may lawfully do so) will, prior to the delivery of any such Aircraft, to select a substitute from other *** data or similar data reported by *** organizations*. Such substitute will result in the same adjustment, insofar as possible, as would have been calculated utilizing the original values adjusted for fluctuation during the applicable time period. However, if within *** months after delivery of the Aircraft, the *** should resume releasing values for the months needed to determine the Airframe Price Adjustment, ***; such values will be used to determine any *** or ***in the *** *for the Engine from *** that determined ***at the time ***of delivery *** of the Aircraft***. 2.2 Notwithstanding Article 2.1 above, if prior to the scheduled delivery month of an Aircraft the *** changes the *** for determination of the *** and *** values as defined above, such *** *will be *** *in the ***. 2.3 In the event escalation provisions are made non-enforceable or otherwise rendered void by any agency of the United States Government, the parties agree, to the extent they may lawfully do so, to *** *the *** *of any *** *to *** an *** *for *** or *** with the *** of *** of this *** in *** and *** since *** of the *** to the *** in ***. P.A. No. 3860 EE1UCH-RR - PA-03776-AE1 AE1 Page 3 Rev.: 07/31/08 United Air Lines, Inc. XX Xxxxx 1000 Engines 2.4 If within *** of Aircraft delivery, the published index values are revised due to an acknowledged error by the ***Bureau of Labor Statistics, the Engine Airframe Price Adjustment will be *** *(this does not include those values noted as preliminary by the ***). A *** or *** will be issued for the *** for the period of original invoice to issuance of *** or ***. Note: i. : (i) The values released by the *** and available to Boeing *** prior to the first day of the scheduled delivery month of an Aircraft will be used to determine the *** and *** values for the applicable months (including those noted as preliminary by the ***) to calculate the Engine Airframe Price Adjustment for the Aircraft invoice at the time of delivery. The values will be considered final and *** *will be *** *for any *** *in ***, * subject always to Pragraph 2.4 above***. (ii) The maximum number of digits to the right of the decimal after rounding utilized in any part of the Airframe Price Adjustment equation will be four (4), where rounding of the fourth digit will be increased to the next highest digit when the 5th digit is equal to five (5) or greater. UCH-PA-03776-AE1 AE1 Page 4 UCH-PA-03776-BFE1 Page 1

Values to be Utilized in the Event of Unavailability. 2.1 If the *** substantially revises the methodology used for the determination of the values to be used to determine the *** and *** values (in contrast to benchmark adjustments or other corrections of previously released values), or for any reason has not released values needed to determine the applicable Engine Price Adjustment***, Rolls-Royce plc agrees to meet jointly with Boeing and the Customer (to the extent such parties may lawfully do so) will, prior to the delivery of any such Aircraft, to select a substitute from other *** data or similar data reported by *** organizations*. Such substitute will result in the same adjustment, insofar as possible, as would have been calculated utilizing the original values adjusted for fluctuation during the applicable time period. However, if within *** after delivery of the Aircraft, the *** should resume releasing values for the months needed to determine *** the ***; such values * will be used to determine any *** or *** in the *** for the Engine *** from that determined *** at the time *** of delivery *** of the Aircraft***. 2.2 Notwithstanding Article 2.1 above, if prior to the scheduled delivery month of an Aircraft the *** changes the *** base year for determination of the *** and *** values as defined above, such *** will be *** in the ***. 2.3 In the event escalation provisions *** are made non-enforceable or otherwise rendered void by any agency of the United States Government, the parties agree, to the extent they may lawfully do so, to *** the *** of any *** to *** an *** for *** or *** with the *** of *** of this *** in *** and *** since *** of the *** to the *** shown in ***. P.A. No. 3860 EE1-RR - 3 Rev.: 07/31/08 United Air Lines, Inc. XX Xxxxx 1000 Engines. 2.4 If within *** of Aircraft delivery, the published index values are revised due to an acknowledged error by the ***, the Engine Price Adjustment * will be *** (this does not include those values noted as preliminary by the ***). A *** or *** will be issued for the *** for the period of original invoice to issuance of *** or ***. Note: i. : (i) The values released by the *** and available to Boeing *** prior to the first day of the scheduled delivery month of an Aircraft will be used to determine the *** and *** values for the applicable months (including those noted as preliminary by the ***) to calculate the Engine Price Adjustment *** for the Aircraft invoice at the time of delivery. The values will be considered final and *** will be *** for any *** in ***. (ii) The maximum number of digits to the right of the decimal after rounding utilized in any part of the *** equation will be four (4), subject always where rounding of the fourth digit will be increased to Pragraph 2.4 abovethe next highest digit when the 5th digit is equal to five (5) or greater.