Helicopter Sikorsky HH-3F Pelican Serial 61-593 Register 1431 used by US Coast Guard USCG. Aircraft history and location Aircraft History For 1431 see also tth 1431 sa341f 1431 1431 US Coast Guard 1993-09-27Sikorsky S-61R c/n 61-593, ff? del USCG as HH-3F 1431 unk wfu & stor AMARC as 440041, 27Sep93. Send Updates Use APP to upload photo @ (optional) When Now? / / Send