Supplemental Agreement No. 19, dated as of April 8, 2021, to Purchase Agreement No. 03735 dated as of February 1, 2013, by and between American Airlines, Inc. and The Boeing Company

This SUPPLEMENTAL AGREEMENT No. 19 (SA-19), entered into as of April _8__, 2021 (Effective Date), by and between THE BOEING COMPANY, a Delaware corporation with offices in Seattle, Washington (Boeing) and AMERICAN AIRLINES, INC. a Delaware corporation with offices in Fort Worth, Texas, together with its successors and permitted assigns (Customer);

WHEREAS, Boeing and Customer entered into Purchase Agreement No. 03735 dated February 1, 2013 relating to Boeing Model 737 MAX Aircraft, as amended and supplemented (Purchase Agreement) and capitalized terms used herein without definitions shall have the meanings specified therefore in such Purchase Agreement;

    WHEREAS, Boeing and Customer have entered into Letter No. AAL-LA ###-###-####, entitled [****] and Letter Agreement No. AAL-PA-03735-LA ###-###-#### entitled [****], which both [****] the [****] for the following [****] ([****]) as June 2021:

    WHEREAS, Boeing and Customer agree that pursuant to Section 1.2 of the [****], Customer agreed to [****] to, [****], [****] the [****] and the [****] (each as defined in Section 1.2 of the [****]);

     WHEREAS, in accordance with Section 1.2 of the [****], Customer has [****] to Boeing the [****] by [****], and the [****] for the [****];

WHEREAS, Customer has [****] to Boeing the [****] in a [****] to Boeing [****] for [****];

NOW, THEREFORE, the parties agree that the Purchase Agreement is amended as set forth below and otherwise agree as follows:

1.[****].

Customer and Boeing agree to [****] of [****] from [****] to [****] as shown in the table below, pursuant to the terms and conditions in the [****].

2.Table of Contents.

The “Table Of Contents” to the Purchase Agreement referencing SA-18 in the footer is deleted in its entirety and is replaced with the new “Table Of

Contents” (attached hereto) referencing SA-19 in the footer to reflect changes made to the Purchase Agreement by this SA-19. Such new Table of Contents is hereby incorporated into the Purchase Agreement in replacement of its predecessor.

3.Tables.

3.1    Table 1R11. Table 1R11, entitled “Base Weight 737-8 Aircraft Delivery, Description, Price, and Advance Payments” referencing SA-18 in the footer is deleted in its entirety and replaced with Table 1R12, entitled “737-8 Aircraft Delivery, Description, Price, and Advance Payments” (attached hereto) referencing SA-19 in the footer (Table 1R12). Table 1R12 is hereby incorporated into the Purchase Agreement in replacement of Table 1R11. [****].

3.2    Table 1-3R5. Table 1-3R5 entitled “[****] Aircraft Delivery, Description, Price, and Advance Payments” referencing SA-18 in the footer is deleted in its entirety and replaced with Table 1-3R6, entitled “[****] Aircraft Delivery, Description, Price, and Advance Payments” (attached hereto) referencing SA-19 in the footer (Table 1-3R6). Table 1-3R6 is hereby incorporated into the Purchase Agreement in replacement of Table 1-3R5. [****].

4.Miscellaneous.

4.1    The Purchase Agreement is amended as set forth above by the revised Table of Contents, Table 1R12, and Table 1-3R6. All other terms and conditions of the Purchase Agreement remain unchanged and are in full force and effect.

4.2    References in the Purchase Agreement and any supplemental agreements and associated letter agreements to “Table 1” or “Table 1R2” or “Table 1R3”, or “Table1R4 and Table 1-2” or “Table 1(R4) and Table 1-2”, “Table 1R5 and Table 1-2”, “Table 1R6, Table 1-2, and Table 1-3”, “Table 1R7, Table 1-2, and Table 1-3R1”,“Table 1R8, Table 1-2, and Table 1-3R2”, “Table 1R9, Table 1-2, and Table 1-3R3”, “Table 1R10, Table 1-2, and Table 1-3R4”, “Table 1R11, Table 1-2, and Table 1-3R5” are deemed to refer to “Table 1R12, Table 1-2, and Table 1-3R6”.

References in the Purchase Agreement and any supplemental agreements and associated letter agreements to “Table 1R4” or “Table 1R5” (where no corresponding reference to Table 1-2 is made) are deemed to refer to “Table 1R12 and Table 1-3R6”, (including without limitation, and for the avoidance of doubt, the references to Table 1R4 in Section 3 of Supplemental Agreement No. 9 dated April 6, 2018). However, references to Table 1R5 in Letter Agreement AAL-PA-LA-1106650R4 entitled “[****]” is deemed to only refer to Table 1R12 and the references to Table 1R5 in the Slide Letter Agreement remain references to Table 1R5.

References in the Purchase Agreement and any supplemental agreements and associated letter agreements to “Table 1R6”, “Table 1R7”, “Table 1R8”, “Table 1R9”, “Table 1R10” or “Table 1R11” (where no corresponding reference to either Table 1-2 or Table 1-3 is made) are deemed to refer to only “Table 1R12”.

Additionally, for the avoidance of doubt, references in the Purchase Agreement and any supplemental agreements and associated letter agreements to “Table 1-2” (where no corresponding reference to Table 1R4 or Table 1R5 is made) remain references to “Table 1-2”.

4.3 On or before [****], Boeing will, pursuant to Section 6.1 of the [****] Agreement (and by [****] concurrent with the execution of this SA-19), [****] to Customer the [****] in the [****] of [****] ([****]) as shown in the table below.