The last active USAF B-24, it was modified as EZB-24M-21-FO ice research aircraft and used by the Aeronautical Icing Research Laboratory, but crashed on takeoff at Berlin, NH., on 6th March 1951. It was rebuilt for display at Lackland in 1956 and remained on display there until donated to the IWM at Duxford, UK, in 1999 for the then new America Air Museum. It is now displayed there painted to represent 44-40593 "Dugan", a Liberator based at Wendling, Norfolk, with the 392nd Bomb Group in WWII.

Retired to AMARC at Tucson as park code TE0185 in August 2003 and sent for scrapping in April 2010.

VIP aircraft.

This aircraft ended its days with Iraqi Airways as YI-AOW, and was noted derelict at Baghdad International in July 2003 after the second Gulf War. It lingered on there at least as late as April 2011, and it is possible that it is one of two B727 hulks that are still visible there on Google Earth imagery date 12-2022.

The aircraft had been was impounded at SAT by the US Customs Air Support Unit. From April 1969 to December 1971 the aircraft had been owned by the Sealy Mattress Co. of Ohio, and the significance of the registration was that 593 was Sealy company's PO Box Number, and EW were the initials of Ernest Wuliger, the President and CEO. It was last reported stored in Georgia in 1988 and it was deleted from the US register in April 2013.

Operated by the Alamo Wing of the Confederate Air Force. Strangely it carried a USAF type fuselage star and an RAF fin flash. It was re-registered N25YR in September 1991.