Helicopter Sikorsky HSS-1 / SH-34G Seabat Serial 58-10 Register 137854 used by US Navy USN. Built 1954. Aircraft history and location Aircraft History 137854 US Navy 1954-11-30Sikorsky HSS-1, c/n 58-10, ff? del USN as HSS-1 137854, 30Nov54 redesig NUH-34G, Oct62 soc NAS Patuxent River, MD, 06Apr70. Send Updates Use APP to upload photo @ (optional) When Now? / / Send