• 54-1712 US Army #1555. L-20 No. 556. Command A-6. Delivered 31-Jan-1956. Built as L-20A and re-designated U-6A in 1962
Total time: 6,517.0 hours 08-Jun-1972 at Holloman AFB., NM. On auction
• N31618 Kelly Schunke, Wrangell, AK. On USCAR at 29-Sep-1979.
Note: Quoted as U-6A on FAA records.
• N31618 South East Alaska Airlines Inc., Ketchikan, AK. Regd Mar-1980.
Accident: Ketchikan, Alaska. 07-Aug-1981. Whilst with South East Alaska A/L. Uncontrolled collision with ground after pilot became disorientated in fog. Aircraft destroyed by fire after crash. Pilot and four passengers seriously injured. Aircraft recovered and to be rebuilt. No official report found.
• N31618 James B. Hayton, Sedro Woolley, WA. Regd 26-Jan-1993 and 15-Jul-1994. On USCAR at 01-Oct-1994.
Airworthiness Date 15-Jul-1994.
Note: Probably stored as wreck.