Helicopter Sikorsky CH-53C Serial 65-336 Register 70-1626 used by US Air Force USAF. Aircraft history and location Aircraft History 70-1626 US Air Force 1975-11 A ETOUUSAF CH-53C type 601st TASS new delivered 601st TASS 1983-06-12 B EDSB 601st TASS. at Solingen air day. Sikorsky MH-53M Pave Low IV USAF conv to MH-53J conv to MH-53M preserved AFB Robins Georgia Send Updates Use APP to upload photo @ (optional) When Now? / / Send