...NEW YORK (Standard & Poor's) April 8, 2015--Standard & Poor's Ratings Services today assigned its '##' issue-level rating and '1' recovery rating to American Airlines Inc.'s (American; B+/Positive/--) $750 million amended term loan B due Oct. 10, 2021. The term loan is guaranteed by the company's parent, American Airlines Group Inc., and its affiliates, US Airways Group Inc. and US Airways Inc. Our '1' recovery rating indicates our expectation of a "very high" (90%-100%) recovery in a default scenario. American is amending its existing $750 million term loan B that, along with a $400 million revolving credit facility due 2019, the company arranged in October 2014. We rate both of those facilities '##' with a '1' recovery rating. American is not amending the revolving credit agreement, and the changes do not affect our existing ratings on that facility. The term loan and revolving credit facilities are currently secured by airport takeoff and landing slots, airport gate leasehold interests...