Helicopter Sikorsky HSS-1 / SH-34G Seabat Serial 58-62 Register 138493 used by US Navy USN. Built 1955. Aircraft history and location Aircraft History 138493 US Navy 1955-12-14Sikorsky HSS-1, c/n 58-62, ff? del US Navy as HSS-1 138493, 14Dec55 w/o NAS South Weymouth, 30Jul59. Send Updates Use APP to upload photo @ (optional) When Now? / / Send