Delivered to the USAF in 1953 as an L-20A, 52-6078. Retired in 1972 and sold in 1976 as N9313Z. In 1992 registered to Hartley Inc, trading in Alaska as Branch River Air Service. Presumed destroyed in a sadly fatal accident with the loss of the pilot and 3 passengers in the sea on 21 August 2010. Contact was lost on a Branch River Air charter flight en route from Swikshak River Lagoon to Lake Brooks and King Salmon, AK in conditions of low cloud, restricted visibility and heavy rain. Weeks later a few small pieces of metal from the aircraft and personal effects were found washed up on a beach.