To the Detroit Institute of Aeronautics as a ground trainer in 1973. Registration N86599 allocated but not applied. Flew the last ever C-124 flight to McChord AFB, WA in 1986. Preserved at the McChord Air Museum.

Note: The numbers "58" which can just be seen behind the wing is not that of a reg or serial but in fact the last two numbers of the telephone number of the (then) Detroit Institute of Aeronautics. This aircraft was once civil registered as N86599 but it never carried that registration, even not on its ferry flight. In 2017 this "forgotten" registration was finally officially cancelled.

Officially registered to the Detroit Institute of Aeronautics as N86599 on 6 June 1973, but registration not applied. Seen here with "Detroit Institute of Aeronautics" titles replacing the earlier "Georgia Air Guard" titles.

Ex USAF 52-994, registered to the Detroit Institute of Aeronautics as N86599 on 6 June 1973, but registration not applied. Carried Georgia Air Guard titles on the right side as seen here, but on the left side it had Detroit Institute of Aeronautics titles. On 9 October 1986 this aircraft was flown from here to McChord Air Force Base near Seattle, WA, where it was placed on static display. This was the last flight of a C-124 worldwide.

In Georgia ANG colors. Owned by the Detroit Institute of Aeronautics, and officially registered to them as N86599 on 6 June 1973, but registration not applied. This aircraft made the last flight by a C-124 worldwide when it was flown to the McChord Museum in Washington on October 9, 1986. The Beech 18 in front is N80152 c/n A-112.

Seen in the compound of the Detroit Institute of Aeronautics together with OV-10 N718NA, Bell 47G 0-13958, a Beech C-45 and a Cessna 337. The C-124 was officially registered to the Detroit Institute of Aeronautics as N86599 on 6 June 1973, but the registration was not applied. It flew again in 1986 and was the last of the type to fly.