Delivered to the USAAF as 44-9117 in 1945. To Seaboard & Western Airlines as N50055 in 1947. To the USAF as 44-9117 in 1954. Stored at Davis-Monthan AFB with park code CC259 in 1975. Sold to Desert Air Parts in 1979. Registered as N9756H in 1986 then to Millardair as C-GQIC in 1988. (The second C-54 registered as C-GQIC) To Buffalo Airways in 2000. Damaged beyond repair landing at Diavik, NT in 2002.

Built for the USAAF as 44-9117. To Seaboard and Western as N50055 in 1947 and returned to USAF in 1954 for conversion to VC-54E. Placed into storage at AMARC in 1975 and sold to Desert Air Parts in 1979. Bought by Western International Aviation at Tuscon in November 1986 and delivered to Millardair of Toronto, Canada as C-GQIC in January 1988. Placed into storage when Millardair ceased flying and sold to Buffalo Airways in December 1999. Crashed at Diavik Airport NWT in August 2002

Formerly 44-9117 with the USAF as a VC-54E and stored at Davis-Monthan from May 1975. Here it has been fitted with engines and some other components from a former Millardair DC-4 and became C-GQIC (the second) in January 1988. After service with Millardair it went to Buffalo Airways but was destroyed on 28 August 2002 in a non-fatal landing accident at Diavik Airport, NT, Canada when it struck the ground short of the runway.