• 55-3323 United States Army. Delivered 04-Jan-1957. Designated as U-1A.
After being fitted with suitable radio pack for Europe at Red Bird Field, Dallas, TX, the aircraft was flown to Mobile, AL from where it was delivered by ship to Bremerhaven, Germany where they were re assembled and flown to Coleman Barracks, Mannheim, Germany.
May-1957. Collected by crew and flown to 202nd Aviation Company, Boscomantico AAF., Verona, Italy, part of Southern European Task Force, SETAF.
Mar-1962. Assigned to 2nd Aviation Company in France where it served until Feb-1966.
Noted by Neil Aird at Prestwick – EGPK 24-Aug-1962.
Feb-1966. Coleman Barracks, Mannheim, Germany
Jul-1966. Assigned to the Headquarters Company, 8th Infantry Division, Germany.
Oct-1967. Coleman Barracks, Mannheim, German and returned to USA and then to Vietnam.
Mar-1968. 144th Aviation Company (Radio Research), Nha Trang, Vietnam.
Jun-1968. Attached to the 138th Aviation Company (Army Security Agency) Da Nang, Vietnam
Oct-1968. Assigned to the 146th Aviation Company (part of the 509th Radio Research Group) based at Tan Son Nhut Air Base, Saigon.
Note. Although attached to Radio Research Units the aircraft was not converted to RU-1A configuration.
Mar-1971, when it was withdrawn from use and put into storage with the 388th Transportation Company at Vung Tau, the unit responsible for the disposal of all US Army Otters in Vietnam.
• 53323 (Assumed tail no). Sep-1971 handed over to the Government of Cambodia for the Khmer Air Force.
Accident Pochentong Air Base, Cambodia. 10-Mar-1973. The aircraft sustained substantial damage when the plot lost control taking off from the Air Base subsequently languished at the Air Base for several months until eventually scrapped.