• 59-2228 United States Army. Delivered 18-Jul-1960. Designated U-1A.
Initially assigned to the Redstone Arsenal, AL., where it served as a test support aircraft.
Mar-1967. Transferred to the Red River Army Depot, TX., as an operational support aircraft.
Jul-1968. To Vietnam, where it was received by the 388th Transportation Company, Vung Tau.
Sep-1968. Attached to the 165th Aviation Group. Long Binh, Vietnam. Later from Jul-1969 165th Combat Aviation Group.
Nov-1969. Assigned to the 18th Aviation Company until disbanded Jul-1971.
Jal-1971. 79th Transportation Company, Qui Nhon, for storage.
Jul-1971. Deleted from Army inventory and scrapped.