Helicopter Sikorsky HSS-1 / SH-34G Seabat Serial 58-142 Register 138463 used by US Navy USN. Built 1955. Aircraft history and location Aircraft History 138463 US Navy 1955-11-18Sikorsky HSS-1, c/n 58-142, ff? del US Navy as HSS-1 138463, 18Nov55 asgd HS-7, 72, unk sustained extensive damage, 07Dec60 wfu & w/o O&R BuWeps FR, Jacksonville, FL, 16Nov62. 1960-06Jun60 as HS-7 Big Dipper /72 on USS Randolph (CVS-15) HS-7 Send Updates Use APP to upload photo @ (optional) When Now? / / Send