Helicopter Sikorsky HUS-1 / UH-34D Seahorse Serial 58-1599 Register 150234 used by US Marine Corps USMC. Aircraft history and location Aircraft History 150234 US Marine Corps 1964-11-21Sikorsky UH-34D, cn 58-1599, ff:? del USMC as UH-34D, 150234, unk lost at sea off Qui Hhon, RVN, 21Nov64, 2 KIA. Send Updates Use APP to upload photo @ (optional) When Now? / / Send