• 55-3268 United States Army. Delivered 1st May 1956. Designated U-1A.
Allocated to the 14th Army Aviation Company, Fort Riley, KS.
Re-designated the 1st Aviation Company and moved to Fort Benning, GA, Aug-1956 until 1959.
To Redstone Arsenal, AL., as a test support aircraft Oct-1962 until Feb-1966.
Transferred to Fort Huachuca, AZ., again in the test support role In Feb 1966 until Mar-1968.
Army Aviation Brigade, Fort Rucker, AL., from Mr-1966 until Jul-1968.
Red River Army Depot, TX., for overhaul Jul-1968 and was then put into storage there.
• EA-51 Ethiopian Army. based at Addis Ababa under a Military Assistance Program. Feb-1969.
Accident: In Ethiopia. Unknown location date or details.