Helicopter Bell UH-1N Serial 31027 Register 69-6621 used by US Air Force USAF. Aircraft history and location Aircraft History 69-6621 US Air Force 1971-12-04 USAF 20th SOS, w/o 04dec71 Ban Me Thout, Vietnam only USAF UH-1N lost to hostile action during war 20th SOS Send Updates Use APP to upload photo @ (optional) When Now? / / Send