Helicopter Sikorsky HR2S-1 Serial 56-009 Register 140314 used by US Marine Corps USMC. Built 1956. Aircraft history and location Aircraft History 140314 US Marine Corps 1956-07-31Sikorsky S-56, c/n 56-009, ff:? del US Marine Corps as HR2S-1, 140314, 31Jul56 soc & scr unk. 1968-06-03 soc 03jun68 Send Updates Use APP to upload photo @ (optional) When Now? / / Send