...NEW YORK (S&P Global Ratings) Sept. 1, 2017--S&P Global Ratings today assigned its '##+' issue-level and '1' recovery ratings to American Airlines Inc.'s $1.2 billion revolving credit due Oct. 13, 2022, secured principally by American's international route rights to Latin America; its $1 billion revolving credit due Oct. 13, 2022, secured principally by its takeoff and landing slots at London's Heathrow International Airport; and its new $300 million revolving credit due Oct. 13, 2022, secured by aircraft spare parts. The first two revolving credits are extensions of existing credit facilities. We affirmed our '##+' issue-level and '1' recovery ratings on the $1.9 billion term loan also secured by the Latin American routes, the $750 million term loan also secured by the Heathrow slots, and the $1 billion term loan also secured by the aircraft spare parts. We base our ratings on the credit quality of American Airlines' parent, American Airlines Group Inc. (##-/Stable/--), and our analysis...