Helicopter Sikorsky HO4S-2 Serial 55-097 Register N1562 1256 used by US Coast Guard USCG. Built 1951. Aircraft history and location Aircraft History For 1256 see also sa330b 1256 tth 1256 1965 se3160 1256 1256 US Coast Guard 1951-12-03Sikorsky S-55 c/n 55-097, ff:? del USCG as HO4S-2, 1256, 03Dec51. N1562 - ex 1256 Send Updates Use APP to upload photo @ (optional) When Now? / / Send