NEW YORK - Bankrupt AMR Corp., the parent company for American Airlines Inc., on April 14 filed a brief in the U.S. Bankruptcy Court for the Southern District of New York arguing that a former pilot's $5 million claim against the estate should not be permitted because it was not timely filed and because he has failed to satisfy the burden that allows for late claims (In Re: AMR Corporation, No. 11-15463, Chapter 11, S.D. N.Y. Bkcy.).