• 58-1718 US Army. Delivered 28-Jul 1959. Designated U-1A.
Delivered from Downsview to Fort Rucker, AL, to the Army Aviation Board.
Jan-1962. Army Aeronautical Depot Maintenance Centre (ARADMAC) Depot, Corpus Christi, TX., as a support aircraft.
Dec-1965 To Vietnam for the 54th Aviation Company.
Oct-1966 Returned to Army Aeronautical Depot Maintenance Centre (ARADMAC) Depot, Corpus Christi, for maintenance.
Dec-1964. Returned to Vietnam joining the 18th Aviation Company.
Incident. Ten miles west of An Khe 17-Jul-1969. Forced landing following engine shut down. No damage sustained.
Mar-1971. Following disbandment of 18th Aviation Company placed into storage with 388th Transportation Company, Vung Tau, Vietnam.
.Sep -1971. Deleted from Army Inventory.
• 0-81718. (Unconfirmed) Passed to Cambodian Government under Military Assistance Plan for the Khmer Air Force. Circa Sep-1971.
Incident: Details unknown. Reported lost on 13 May 1972.