NEW YORK (Standard&Poor's) April 1, 2008--Standard&Poor's Ratings Services today reinstated its rating on AMR Corp. unit American Airlines Inc.'s $85.7 million 2005-1 class G pass-through certificates that are insured by Financial Guaranty Insurance Co., assigning a 'BBB+' rating. "The reinstated rating on American's 2005-1 class G certificates is based on the Standard&Poor's Underlying Rating [SPUR], rather than our rating on FGIC," said Standard&Poor's credit analyst Philip Baggaley. "We suspended the rating on the certificates March 28, 2008, when we downgraded FGIC to a level below that of the confidential SPUR," the credit analyst continued. The 2005-1 pass-through certificates are secured indirectly by spare engines used on a variety of planes in American's