Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1718 Register 150722 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150722 US Marine Corps 1969-01-19Sikorsky UH-34D, cn 58-1718, ff:? del USMC as UH-34D, 150722, unk dam Cam Ranh Bay, 19Jan69, w/o 23Mar69. Send Updates Use APP to upload photo @ (optional) When Now? / / Send