Helicopter Sikorsky HR2S-1 Serial 56-060 Register 141612 used by US Marine Corps USMC. Built 1958. Aircraft history and location Aircraft History 141612 US Marine Corps 1958-02-12Sikorsky S-56, c/n 56-060, ff:? del USMC as HR2S-1, 141612, 12Feb58 w/o unk. 1958-04-11w/o 11apr58 Send Updates Use APP to upload photo @ (optional) When Now? / / Send