Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1681 Register 150554 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150554 US Marine Corps Sikorsky UH-34D, c/n 58-1681, ff:? del USMC as UH-34D 150554, unk status unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
