Helicopter Bell UH-1N Serial 31417 Register 158246 used by US Marine Corps USMC. Aircraft history and location Aircraft History 158246 US Marine Corps 2005-09-10 Bell HH-1N USMC, conv to HH-1N HMLAT-303 /QT-411 soc 10sep05 HMLAT-303 conv to UH-1Y 166768 Send Updates Use APP to upload photo @ (optional) When Now? / / Send