Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1707 Register 150576 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150576 US Marine Corps 1966-12-07Sikorsky UH-34D, cn 58-1707, ff:? del USMC as UH-34D, 150576, unk w/o 07Dec66. Send Updates Use APP to upload photo @ (optional) When Now? / / Send