Exhibit 12 AMERICAN AIRLINES, INC. Computation of Ratio of Earnings to Fixed Charges (in millions) <Table> <Caption> Three Months Ended March 31, 2004 2003 <s> <c> <c> Earnings (loss): Loss before income taxes $ (182) $(1,032) Add: Total fixed charges (per below) 368 385 Less: Interest capitalized 17 18 Total earnings (loss) before income taxes $ 169 $ (665) Fixed charges: Interest $ 160 $ 150 Portion of rental expense representative of the interest factor 206 233 Amortization of debt expense 2 2 Total fixed charges $ 368 $ 385 Coverage deficiency $ 199 $ 1,050 </Table> Note:As of March 31, 2004, American has guaranteed approximately $1.3 billion of AMR's unsecured debt and approximately $484 million of AMR Eagle's secured debt. The impact of these unconditional guarantees is not included in the above computation.