Helicopter Sikorsky HSS-1 / SH-34G Seabat Serial 58-697 Register 143933 used by US Navy USN. Built 1957. Aircraft history and location Aircraft History 143933 US Navy 1957-12-06 Sikorsky HSS-1N / SH-34J Seabat Sikorsky HSS-1, cn 58-697, ff:? del USN as HSS-1, 143933, 06Dec57 to HSS-1N (ASC 84), unk status unk. Send Updates Use APP to upload photo @ (optional) When Now? / / Send