Helicopter Sikorsky HSS-1 / SH-34G Seabat Serial 58-450 Register 143864 used by US Navy USN. Built 1957. Aircraft history and location Aircraft History 143864 US Navy 1957-02-21 Sikorsky HSS-1N / SH-34J Seabat Sikorsky HSS-1, c/n 58-450, ff? del US Navy as HSS-1 143864, 21Feb57 to HSS-1N (ASC 84), unk redesig SH-34J, Oct62 w/o NAF Johnsville, PA, 28Jul64. Send Updates Use APP to upload photo @ (optional) When Now? / / Send