Between June and October 1967, the first aircraft, re-registered from N900V to N46598, conducted low level nighttime supply drops to CIA related forces in Laos during the so-called "Secret War". The program was discontinued because the aircraft was too fast for accurate drops even with the special onboard equipment, and looked too much like a type of strike aircraft known to operate in the theater. This was cited as often causing forces on the ground to be wary of turning on their marking lamps. The aircraft was damaged on takeoff at Takhli Royal Thai Air Force Base after being transferred to Overseas Aeromarine, Inc.