Delivered to the USAAF as 43-2023 in 1942. To NC19934 in 1945, N19934 after 1948, N93C in 1954, N81R in 1956, N400RS in 1978 and N56NA in 1985. Preserved at Montelimar from 2001. Now in French military colours.

N56NA (ex USAAF 43-2023 and United Air Lines N19934) was operated by Northern Airways since Sep 1983 and withdrawn from use by them in July 1989. It was acquired by Peter Milic and flown to Europe in May 1990, then on to Africa. In July 1991 it arrived at Jerusalem, Israel for storage (until at least June 1994). Then in July 1996 the Skytrooper turned up in France, and was first seen at the museum in May 1998. It was registered to Sunbest Industries Corp. in March 2001 and then to Maghreb Aero Service in September 2001, but those were paper actions only and the aircraft has remained on display ever since.