Delivered to the USAAF as 43-16028 in 1944. To the Civil Aeronautics Administration (CAA) as NC100 in 1947. Reregistered as N100 after 1948. Renamed to the Federal Aviation Administration (FAA) in 1958. Reregistered as N8785 then to the US Department of Agriculture/Forest Service as N100Z in 1970. Converted to BT-67 #6 and reregistered as N142Z in 1991. Used for fire fighting support missions. Sold as N1427 then to Kenn Borek Air as C-GKKB in 1993.