Helicopter Sikorsky HR2S-1 Serial 56-031 Register 141603 used by US Marine Corps USMC. Built 1957. Aircraft history and location Aircraft History 141603 US Marine Corps 1957-06-20Sikorsky S-56, c/n 56-031, ff:? del USMC as HR2S-1, 141603, 20Jun57 wfu & soc unk. 1962-12-17w/o 17dec62 Send Updates Use APP to upload photo @ (optional) When Now? / / Send
