Helicopter Sikorsky HSS-1 / SH-34G Seabat Serial 58-666 Register 143922 used by US Navy USN. Built 1957. Aircraft history and location Aircraft History 143922 US Navy 1957-10-11 Sikorsky HSS-1N / SH-34J Seabat Sikorsky HSS-1, c/n 58-666, ff? del USN as 143922, 11Oct57 xfer HS-11, HF-4, 1957 to HSS-1N (ASC 84), unk status unk. HS-11 1958-09Sep58 with HS-11 dipping its AN/AQS-5 sonar HS-11 Send Updates Use APP to upload photo @ (optional) When Now? / / Send