...NEW YORK (Standard & Poor's) Jan. 12, 2016--Standard & Poor's Ratings Services today assigned its preliminary '## (sf)' issue-level rating to American Airlines Inc.'s series 2016-1 class ## pass-through certificates (with an expected maturity date of Jan. 15, 2028). At the same time, we assigned our preliminary 'A (sf)' issue-level rating to the company's series 2016-1 class A pass-through certificates (with an expected maturity date of Jan. 15, 2028). Additionally, we assigned our preliminary '### (sf)' issue-level rating to American Airlines' series 2016-1 class B certificates (with an expected maturity date of Jan. 15, 2024). The final legal maturities will be 18 months after the expected maturities. American Airlines is issuing the certificates under a Rule 415 shelf registration. We will assign final ratings upon the completion of our legal and structural review. We base our preliminary ratings on these issues on the credit quality of American Airlines' parent, American Airlines Group...