Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1598 Register 150233 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150233 US Marine Corps 1966-05-14Sikorsky UH-34D, cn 58-1598, ff:? del USMC as UH-34D, 150233, unk w/o Southeast Asia, 14May66. Send Updates Use APP to upload photo @ (optional) When Now? / / Send