Helicopter Bell UH-1N Serial 31616 Register 158275 used by US Marine Corps USMC. Aircraft history and location Aircraft History 158275 US Marine Corps 1977-07-25 Bell HH-1N USMC 25jul77 to MASDC-7H062 rtn service, conv to HH-1N 21jun93 to AMARC-7H0236 preserved Camp Pendleton as 142401 Send Updates Use APP to upload photo @ (optional) When Now? / / Send