Delivered to the USAF as 52-5791 in 1954. Stored at Davis-Monthan AFB in 1975. Left in 1988. Registered as N70636 in 1989 and stored at Tucson. To Aero Internacionale as XA-TDF then to Mexicana de Carga in 1996. To Wings of Hope as N70636 in 1999. Reported as still in service in 2001. Fate unknown.

Arrived at Davis Monthan in March 1975. Transferred to the US Coast Guard in January 1977, allocated serial 5791 but remained stored for use as spares. Registered as N70636 to Central Air Services in February 1989, Ibex International in May 1989 and Starship Inc in May 1992. Cancelled on sale to Mexico as XA-TDF in August 1996 and last operated as such by Línea Aérea Mexicana de Carga. Withdrawn from use at Chihuahua, Mexico (MMCU/CUU) by 2008 and remains abandoned there at time of upload.

Ex - USAF 52-5791 it was was once earmarked for conversion to an HC-131A for the USCG but never converted. It became XA-TDF for Línea Aérea Mexicana de Carga in 1996, and was last reported derelict at General Roberto Fierro Villalobos International Airport, Chihuahua, Mexico.

Ex USAAF 52-8791. Registered N70636 in February 1989 and stored at Tucson Airport. Sold in Mexico in 1996.

The two Mexicana Carga Convairs at Chihuahua, as seen from the airport terminal, landside. Trying to hide behind a tiny bit of weed in the dry desert. Both aircraft still complete with titles and props. XA-TDF Green and XA-TDL in purple colours.