NEW YORK - The federal bankruptcy judge presiding over the Chapter 11 bankruptcy of AMR Corp. in the U.S. Bankruptcy Court for the Southern District of New York on May 28 partially denied and partially granted a motion filed by AMR seeking a ruling that certain retiree benefits were not vested (AMR Corporation v. Committee of Retired Employees [In Re: AMR Corporation], No. 12-01744, Chapter 11, S.D. N.Y. Bkcy.).