Helicopter Sikorsky CH-53C Serial 65-256 Register 68-10927 used by US Air Force USAF. Aircraft history and location Aircraft History 68-10927 US Air Force 1975-11 A ETOUUSAF CH-53C type 601st TASS new delivered 601st TASS 1976-03-17 B ETAS accident w/o at Sembach Germany, asg 601st TASS. 4 fatalities 601st TASS Send Updates Use APP to upload photo @ (optional) When Now? / / Send