Delivered to the USAF as C-131A 52-5784 in 1954. Stored at Davis-Monthan AFB, AZ in 1975. Left in 1976. To the US Coast Guard as HC-131A 5784. Returned to storage at Davis-Monthan AFB, AZ in 1982. Sold as N54215 in 1984. Cargo door very recently modified to simulate a space shuttle escape system. Stored at California City, CA in 1992. To the California Museum of Air and Space there in 1998.

In 1987 this Convair was used by the NASA as a Space Shuttle Crew Escape System testbed. It was fitted with a CES (Crew Escape System) mockup on the left side of the rear fuselage. The aircraft was stored here at California City by 1993, and preserved by 1997, reportedly by a set-up called the California Museum of Air and Space.

As of Sep 1987 this Convair was used by the NASA as a Space Shuttle Crew Escape System testbed. This photo still shows the CES (Crew Escape System) mockup that was fitted to the left side of the rear fuselage. The CES was a candidate concept developed to provide crew egress capability during Space Shuttle controlled gliding flight. Actual tests of this system with this Convair began on 20 Nov 1987, whereby life-like dummies were pulled from the modified aircraft's side hatch mockup by tractor rockets. The aircraft had been stored here at California City by 1992, and preserved by 1997, reportedly by a set-up called the California Museum of Air and Space.

Ex USCG 5784.