Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1620 Register 150243 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150243 US Marine Corps 1967-12-23Sikorsky UH-34D, cn 58-1620, ff:? del USMC as UH-34D, 150243, unk w/o 23Dec67. Send Updates Use APP to upload photo @ (optional) When Now? / / Send