Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1621 Register 150244 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150244 US Marine Corps 1967-03-03Sikorsky UH-34D, cn 58-1621, ff:? del USMC as UH-34D, 150244, unk w/o Marble Mountain, RVN, 03Mar67. Send Updates Use APP to upload photo @ (optional) When Now? / / Send