Operated by the 4950th Test Wing, Aeronautical Systems Division based at Wright-Patterson AFB, OH. Transferred to the 46th Test Wing based at Eglin in 1994. Was the last C-130A operated by the USAF and retired in 2003.
This Howard was a participant in the 1990 London to Sydney World Vintage Air Rally as N66546. Entered the Australian register as VH-DGA in Sep 1990, but was destroyed by fire at Avalon, Victoria,on 29 Oct 1992