• 56-375 US Army #1676. L-20 N0. 677. Command A-11. Delivered 25-Oct-1957. Built as L-20A and re- designated U-6A in 1962.
Note: Originally serialed as shown above but in approx 1965 would have had the additional “0” added to conform with US Army & USAF agreement on numbering to represent the service the aircraft operated with.
• 1083 Taiwanese Army. Other details currently unknown.