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, 2002 2001 2002 2001 <s> <c> <c> <c> <c> Earnings: Loss before income taxes $(706) $(712) $(1,520) $(756) Add: Total fixed charges (per below) 382 381 770 668 Less: Interest capitalized 21 35 41 74 Total loss $(345) $(366) $(791) $(162) Fixed charges: Interest, including interest capitalized $ 123 $ 103 $ 250 $ 190 Portion of rental expense representative of the interest factor 258 277 518 476 Amortization of debt expense 1 1 2 2 Total fixed charges $ 382 $ 381 $ 770 $ 668 Coverage deficiency $ 727 $ 747 $1,561 $ 830 </Table> Note: In April 2001, the Board of Directors of American approved the guarantee by American of AMR's existing debt obligations. As of June 30, 2002, this guarantee covered approximately $634 million of unsecured debt and approximately $573 million of secured debt. The impact of these unconditional guarantees is not included in the above computation.