Helicopter Sikorsky HH-52A Sea Guard Serial 62-130 Register 1447 used by Northwest Helicopters ,US Coast Guard USCG. Aircraft history and location Aircraft History For 1447 see also sa330b 1447 1447 US Coast Guard Sikorsky S-62C c/n 62-130, ff? del USCG as HH-52A Seaguard 1447 unk wfu & preserved at Olympic Flight Museum, Olympia MAP, WA. Northwest Helicopters Preserved Olympia WA in 2011 with Northwest Helicopters Send Updates Use APP to upload photo @ (optional) When Now? / / Send