K25 slide scan. Built 1974 as L-1011-1 N31022 for TWA. Converted to -50 1984. American Trans Air 1990, reregistered N196AT 1993, withdrawn Roswell 2002. For many years ATA's TriStars formed a significant part of civil contract airliners operating for the USAF Military Airlift Command MAC, renamed Air Mobility Command AMC in 1992.