Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-996 Register 145794 used by US Marine Corps USMC. Aircraft history and location Aircraft History 145794 US Marine Corps 1962-10Sikorsky HUS-1, cn 58-996, ff:? del USMC as HUS-1, 145794, unk redesig UH-34D, Oct62 wfu & sold to US civil registry as N7936C. Send Updates Use APP to upload photo @ (optional) When Now? / / Send