Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1644 Register 150252 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150252 US Marine Corps 1966-09-06Sikorsky UH-34D, cn 58-1644, ff:? del USMC as UH-34D, 150252, unk w/o 06Sep66. Send Updates Use APP to upload photo @ (optional) When Now? / / Send