Helicopter Westland Wessex HC.2 Serial wa196 Register XS677 used by Royal Air Force RAF. Built 1965. Aircraft history and location Aircraft History XS677 apr65 Royal Air Force Westland Wessex HC.2, c/n WA196, f/f: 15/03/1965 del Royal Air Force as XS677, 02/04/1965. 1972-09-07 A EGLF Visiting 240 OCU / BY at Farnborough air show 1972 240 OCU Send Updates Use APP to upload photo @ (optional) When Now? / / Send