Loaned to USAF as C-118A 51-17647. Returned to USN. Converted to R6D-1Z and redesignated VC-118B in 1962. Sold on civil market and registered Jan 1990 to American Air Freight Co, Inc as N21780. Registered N1597F at a later time. Destroyed when missed runway on landing at Patriot Hill, Antarctica Nov 26, 1993.