Helicopter Sikorsky HSS-1 / SH-34G Seabat Serial 58-648 Register 143913 used by US Navy USN. Built 1957. Aircraft history and location Aircraft History 143913 US Navy 1957-10-03 Sikorsky HSS-1N / SH-34J Seabat Sikorsky HSS-1, c/n 58-648, ff? del USN as 143913, 03Oct57 to HSS-1N (ASC 84), unk status unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send