• 55-3313 United States Army. Delivered 07-Dec-1956. Designated as U-1A with serial
It first served with the 3rd Aviation Company, Fort Riley, KS.
July-1957. Moved with the unit to Illesheim, Germany.
Accident: Heilbronn, Germany, 20-Jan-1958. It slid off the icy runway and the gear collapsed as it went over a ditch. Repaired.
Feb-1968. Assigned to the 2nd Aviation Company based at Poitiers, France.
Sep-1962. joined the 8th Infantry Division at Bad Kreuznach, Germany until Oct-1967.
Oct-1967. Returned to USA for maintenance.
Unknown date. Taken on charge by the 388th Transportation Company, Vung Tau, Vietnam and prepared for service.
Aug-1968. 54th Aviation Company, Vung Tau & Rach Gia, Vietnam, until unit disbanded in Feb-1971.
Feb-1971. Returned to the 388th Transportation Company, Vung Tau, Vietnam, and put into storage.
• 53313 (Assumed serial) Handed over to the Government of Cambodia for the Khmer Air Force.. Sep-1971 until withdrawn from use.
Nov 1971. Reported as a combat loss on 13-Nov-1971 and not flyable in Jul-1973.