Helicopter Sikorsky HR2S-1 Serial 56-016 Register 140317 used by US Marine Corps USMC. Built 1957. Aircraft history and location Aircraft History 140317 US Marine Corps 1957-01-06Sikorsky S-56, c/n 56-016, ff:? del USMC as HR2S-1, 140317, 06Jan57 w/o unk. w/o 04feb57 Send Updates Use APP to upload photo @ (optional) When Now? / / Send
