Exhibit 10.4

Amendment No. 8

to the

Amended and Restated Airbus A350 XWB Purchase Agreement

dated as of October 2, 2007

between

AIRBUS S.A.S.

and

AMERICAN AIRLINES, INC.

This Amendment No. 8 to the Amended and Restated Airbus A350 XWB Purchase Agreement between Airbus S.A.S. and American Airlines, Inc. (this “Amendment”) is entered into as of July 18, 2016 by and between Airbus S.A.S., a société par actions simplifiée, organized and existing under the laws of the Republic of France, having its registered office located at 1, rond-point Maurice Bellonte, 31700 Blagnac, France (the “Seller”), and American Airlines, Inc., a corporation organized and existing under the laws of the State of Delaware, United States of America, having its principal corporate offices located at 4333 Amon Carter Boulevard, Fort Worth, Texas 76155, U.S.A., as successor by merger to US Airways, Inc. (the “Buyer”).

W I T N E S S E T H

WHEREAS, the Buyer and the Seller entered into an Amended and Restated Airbus A350 XWB Purchase Agreement, dated as of October 2, 2007 (together with all Exhibits, Appendices and Letter Agreements attached thereto and as amended, modified or supplemented from time to time, hereinafter called the “Agreement”);

WHEREAS, the Buyer and the Seller entered into an Airbus A320 Family Aircraft Purchase Agreement, dated as of July 20, 2011 (together with all Exhibits, Appendices and Letter Agreements attached thereto and as amended, modified or supplemented from time to time, hereinafter called the “Airbus A320 Agreement”);

WHEREAS, the Buyer and the Seller have agreed to amend the Scheduled Delivery Months applicable to the Aircraft as set forth herein; and

WHEREAS, the Buyer and the Seller have agreed to amend certain additional terms of the Agreement as set forth herein.

NOW, THEREFORE, IT IS AGREED AS FOLLOWS:

Capitalized terms used herein and not otherwise defined in this Amendment will have the meanings assigned to them in the Agreement. The terms “herein,” “hereof,” and “hereunder” and words of similar import refer to this Amendment.

QUOTE

9.1.1 Subject to any delay contemplated by Clauses 2, 7, 8, 10, 11.2, 18 or 21.2 of this Agreement, the Seller will have the Aircraft Ready for Delivery at the Delivery Location within the following months (each, a “Scheduled Delivery Month”).

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[*CTR]

QUOTE

[*CTR]

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QUOTE

[*CTR]

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Clause 5.2.5 of the Agreement is hereby amended by adding the following quoted text immediately after the word “request” in the first sentence:

QUOTE

(with reasonable notice provided to the Buyer)

UNQUOTE

This Amendment is subject to the confidentiality provisions set forth in Clause 22.7 of the Agreement.

The governing law shall be as set forth in Clause 22.4 of the Agreement.

This Amendment may be signed in any number of separate counterparts. Each counterpart, when signed and delivered (including counterparts delivered by facsimile transmission), will be an original, and the counterparts will together constitute one and the same instrument.

APPENDIX B TO

THE AMENDED AND RESTATED LETTER AGREEMENT NO. 12

Planning for the delivery of the A350-900/Trent XWB 84,000 lb aircraft: