• 55-3253 United States Army. Delivered on 12th March 1956. Designated U-1A
It was allocated to the 14th Army Aviation Company, Fort Riley, KS.
Re-designated the 1st Aviation Company, moved to Fort Benning, GA until 1961.
57th Aviation Company at Fort Sill, OK., until March 1963.
It joined the 937th Engineer Company, Panama Canal Zone for use on the Inter American Geodetic Survey (IAGS), February 1966 until early 1968.
It was then flown to the Sharpe Army Depot, Stockton, CA in April 1968 for overhaul and was transported from there to Vietnam, where in October 1968 it joined the 54th Aviation Company.
Unit stood down in Jan-1971 and placed into storage with the 56th Transportation Company at Long Thanh North.
Feb 1971 flown to Vung Tau and handed over to the 388th Transportation Company for disposal.
• Serial unknown Government of Cambodia between Jul and Dec-1971. Presumed withdrawn from use and scrapped.