Helicopter Bell UH-1N Serial 31421 Register 158250 used by US Marine Corps USMC ,US Navy USN. Aircraft history and location Aircraft History 158250 US Navy 1977 A KNGP Bell HH-1N US Navy -1982 was NAS Corpus Christi SAR bird US Marine Corps 1995-10 B KNFG homebase as HMT-303 /QT-421 at MCAS Camp Pendleton HMLAT-303 2005-05-28soc 28may05 Send Updates Use APP to upload photo @ (optional) When Now? / / Send