Helicopter Sikorsky CH-53C Serial 65-339 Register 70-1629 used by US Air Force USAF. Aircraft history and location Aircraft History 70-1629 US Air Force 1980-04 A ETASUSAF CH-53C type 601st TASS new delivered 601st TASS 1985-05-26 B EGUN Mildenhall Air Fete 85 CH-53C type At Mildenhall Air Fete 85 601st TASS Sikorsky MH-53M Pave Low IV USAF conv to MH-53J conv to MH-53M Send Updates Use APP to upload photo @ (optional) When Now? / / Send