Helicopter Sikorsky HO4S-3G Serial 55-1125 Register 1327 used by US Coast Guard USCG. Built 1957. Aircraft history and location Aircraft History 1327 US Coast Guard 1957-10-31Sikorsky S-55 c/n 55-1125, ff:? del USCG as HO4S-3G, 1327, 31Oct57. Send Updates Use APP to upload photo @ (optional) When Now? / / Send
