Exhibit 10.7 American Airlines, Inc. P.O. Box 619616 Dallas-Fort Worth Airport, Texas 75261-9616 Subject: Business Considerations Reference: a) Purchase Agreement No. 1977 between The Boeing Company (Boeing) and American Airlines, Inc. (Customer) relating to Model 737-823 Aircraft b) Letter Agreement No. 6-1162-AKP-074R1, dated July 17, 1998, Same Subject This letter agreement (Letter Agreement) is entered into on the date below and amends and supplements the Reference (a) Purchase Agreement. Furthermore, this Letter Agreement cancels and supersedes in full the Reference (b) Letter Agreement. All capitalized terms used herein but not otherwise defined in this Letter Agreement shall have the same meanings assigned thereto in Exhibit C to the Purchase Agreement or elsewhere in such Purchase Agreement. 1. Model 737-823 [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. 2. Model 737-723 [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. If Customer purchases one or more Model 737-723 Aircraft pursuant to Letter Agreement No. 6-1162-AKP-075, then Boeing will [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. 3. Model 737-623 [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. If Customer purchases one or more Model 737-623 Aircraft pursuant to Letter Agreement No. 6-1162-AKP-075, then Boeing will [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. 4. [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. 4.1 If Customer purchases one or more Model 737-823 Aircraft after the date of this Letter Agreement, Boeing shall [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. 4.2 If Customer purchases one or more Model 737-723 Aircraft after the date of this Letter Agreement, Boeing shall [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. 4.3 At the execution of this revised Letter Agreement, Boeing has not [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. 5. Application [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]. Customer will be entitled to [CONFIDENTIAL PORTION OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT] 6. Confidential Treatment. Customer and Boeing understand that certain commercial and financial information contained in this Letter Agreement are considered by Boeing and Customer as confidential. Customer and Boeing agree that each will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of the other, disclose this Letter Agreement or any information contained herein to any other person or entity, except as provided in this Letter Agreement or the Purchase Agreement. Very truly yours, THE BOEING COMPANY By [Lyn A. Johnson] Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: May 5 , 2005 AMERICAN AIRLINES, INC. By [Beverly Goulet] Its Vice President - Corp. Dev. & Treasurer