• 53-2784 US Army #1327. L-20 No: 328. Command A-4. Delivered 06-Nov-1953. Built as L-20A and re-designated U-6A in 1962.
• 53-2784 Stored at MASDC., Davis Monthan AFB., AZ., with an US Army Inventory Code UD???. Added to USAF. PCN (Product Control Number) HS056 circa 10-Jan-1972, reason unknown. Declared excess on 04-Oct-1974. Departed 06-Feb-1976.
Note: Purchased by Graves at the Davis Monthan auction sale on 29-Jan-1976 for US$23,000. Purchased on the basis of “no reasonable potential for normal certification”. Total time 6,731.0 hours. Engine 6,624 hours. Comment at time of auction: leaking right wing tank, no tip tanks and no data plate.
• N9258Z Graves Aircraft, Yukon, OK. Regd 06-Feb-1976.
• N9258Z Karen K. Graves, Yukon, OK. Dates unknown.
• N9258Z Kenmore Air Harbor, Kenmore, WA. Regd Sep-1979. Possibly used for spares reduction.
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