Helicopter Sikorsky HO4S-3G Serial 55-1136 Register 1330 used by US Coast Guard USCG. Built 1957. Aircraft history and location Aircraft History For 1330 see also sa330h 1330 1330 US Coast Guard 1957-11-29Sikorsky S-55 c/n 55-1136, ff:? del USCG as HO4S-3G, 1330, 29Nov57. Send Updates Use APP to upload photo @ (optional) When Now? / / Send