Exhibit 12 AMERICAN AIRLINES, INC. Computation of Ratio of Earnings to Fixed Charges (in millions) Three Months ended Nine Months Ended September 30, September 30, 2006 2005 2006 2005 Earnings (loss): Earnings (loss) before income taxes $ 1 $(161) $ 175 $(291) Add: Total fixed charges (per below) 432 399 1,276 1,150 Less: Interest capitalized 7 12 21 58 Total earnings (loss) before income taxes $426 $ 226 $1,430 $ 801 Fixed charges: Interest, including interest capitalized $217 $ 180 $ 635 $ 521 Portion of rental expense representative of the interest factor 212 216 630 621 Amortization of debt expense 3 3 11 8 Total fixed charges $432 $ 399 $1,276 $1,150 Ratio of earnings to fixed charges - - 1.12 - Coverage deficiency $ 6 $ 173 $ - $ 349 Note: As of September 30, 2006, American has guaranteed approximately $1.1 billion of AMR's unsecured debt and approximately $388 million of AMR Eagle's secured debt. The impact of these unconditional guarantees is not included in the above computation.