Exhibit 12 AMERICAN AIRLINES, INC. Computation of Ratio of Earnings to Fixed Charges (in millions) <Table> <Caption> Three Months Six Months Ended June 30, Ended June 30, 2004 2003 2004 2003 <s> <c> <c> <c> <c> Earnings: Loss before income taxes $ (13) $(133) $(195) $(1,165) Add: Total fixed charges (per below) 372 378 740 761 Less: Interest capitalized 19 17 36 35 Total loss before income taxes $ 340 $ 228 $ 509 $ (439) Fixed charges: Interest, including interest capitalized $ 162 $ 147 $ 322 $ 296 Portion of rental expense representative of the interest factor 207 229 413 462 Amortization of debt expense 3 2 5 3 Total fixed charges $ 372 $ 378 $ 740 $ 761 Coverage deficiency $ 32 $ 150 $ 231 $ 1,200 </Table> Note:As of June 30, 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.