<Page> 31 Exhibit 99 AMR CORPORATION Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), each of the undersigned officers of AMR Corporation, a Delaware corporation (the Company), does hereby certify, to such officer's knowledge, that: The Quarterly Report on Form 10-Q for the quarter ended September 30, 2002 (the Form 10-Q) of the Company fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company. Date: October 18, 2002 /s/ Donald J. Carty Donald J. Carty Chairman and Chief Executive Officer Date: October 18, 2002 /s/ Jeffrey C. Campbell Jeffrey C. Campbell Senior Vice President and Chief Financial Officer The foregoing certification is being furnished solely pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) and is not being filed as part of the Form 10-Q or as a separate disclosure document.