Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-976 Register 145791 used by US Marine Corps USMC. Aircraft history and location Aircraft History 145791 US Marine Corps 1962-10Sikorsky HUS-1, cn 58-976, ff:? del USMC as HUS-1, 145791, unk redesig UH-34D, Oct62 dam sustained RVN, 25Jan67 w/o 26Jan67. Send Updates Use APP to upload photo @ (optional) When Now? / / Send