• 56-420 US Army # 1759. L-20 No. 760. Command A-11. Delivered 27-Jan-1958. Built as L-20A and re-designated U-6A in 1962.
Note: Originally serialed as shown above but in approx 1965 it would have had had the additional “0” added to conform with US Army & USAF agreement on numbering to represent the service the aircraft operated with.
• 56-0420 South California National Guard, 51st Aviation Group. Circa 1974. wfu 28-Feb-1975.
• 56-0420 Stored at MASDC., Davis Monthan AFB., AZ. 28-Feb-1975 to 31-Aug-1976. PCN (Product Control Number) UD073.
• N9968F Civil Defence, Houma, LA. Dates Unknown.
Note: The marks, N9968F, were poorly applied and it clearly spent virtually 10 years with it daubed on It is doubted that the marks were ever really registered properly. It was almost certainly only a reservation at best - probably no proper paperwork.