Helicopter Westland Wessex HAS.1 Serial wa 43 Register XM922 used by Fleet Air Arm RN (Royal Navy). Built 1961. Aircraft history and location Aircraft History XM922 Fleet Air Arm Westland Wessex HAS.1, c/n WA043, f/f:? del Royal Navy as XM922, 10/1961 w/o 12/08/1963. 1963-08-12 Accident 814 Sq / 344-H by Feb 1962. Ditched and sank off HMS Hermes 12 Aug 1963 while operating off Aden Send Updates Use APP to upload photo @ (optional) When Now? / / Send