Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1420 Register 149323 used by US Marine Corps USMC. Aircraft history and location Aircraft History 149323 US Marine Corps 1962-10Sikorsky HUS-1, cn 58-1420, ff:? del USMC as HUS-1, 149323, unk redesig UH-34D, Oct62 status unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send