Helicopter Sikorsky CH-54A Tarhe Serial 64-011 Register 66-18409 used by US Army Aviation Army. Built 1966. Aircraft history and location Aircraft History 66-18409 US Army Aviation Sikorsky S-64A, c/n 64-011, ff? Sikorsky test reg unk del US Army as YCH-54A 66-18409 unk gate guard at Key Field, Meridian, MS. 2018-03Ft Hood, TX by Mar18 Send Updates Use APP to upload photo @ (optional) When Now? / / Send