Helicopter Sikorsky CH-53C Serial 65-252 Register 68-10923 used by US Air Force USAF. Aircraft history and location Aircraft History 68-10923 US Air Force 1973-06-00 A KAUS d/d 701st TASS, Bergstrom AFB Texas from Hill AFB, Utah still at Bergstrom when I left in March 1975 conv to MH-53H unk conv to MH-53J Send Updates Use APP to upload photo @ (optional) When Now? / / Send