Helicopter Bell UH-1E Iroquois Serial 6141 Register N6204D 154757 used by US Marine Corps USMC. Aircraft history and location Aircraft History 154757 US Marine Corps to civ as N6204D N6204D - Unc Helicopters, Ozark, AL, 1993-1995 ex 154757 Send Updates Use APP to upload photo @ (optional) When Now? / / Send