US Navy P-3A bu 150510 was transferred to the Spanish Air Force . On return, it was sold to Hawkins & Powers in 1996 for parts. Aero Union bought the aircraft in 2004 and converted it to a P-3 Aerostar. With Aero Union's bankruptcy in 2011, it was stored at Chico and since acquired by United Aeronautical Corp when they purchased the MAFFS 2 fire fighting system.