• 55-3322 United States Army. Delivered 19-Dec-1956. Designated as U-1A.
It first served with the 3rd Aviation Company, Fort Riley, KS.
Jul-1957. Deployed with the unit to Illesheim, Germany until disbanded in Nov-1959.
Nov-1959. Assigned to the 2nd Aviation Company in France. until the unit disbanded in March 1967.
Mar-1967. assigned to the 56th Aviation Detachment, Coleman Barracks, Mannheim, Germany. October 1967 when it was transported back to the United States.
Mar-1968. Assigned to 54th Aviation Company, Vung Tau, Vietnam until the unit stood down in January 1971.
Jan-1971. 56th Transportation Company for storage.
Feb-1971. 388th Transportation Company, Vung Tau which was the unit responsible for disposal of all Army Otters in Vietnam where the aircraft was scrapped in August 1971.