Helicopter Westland Wessex HAS.1 Serial wa102 Register XS123 used by Fleet Air Arm RN (Royal Navy). Built 1963. Aircraft history and location Aircraft History XS123 Fleet Air Arm Westland Wessex HAS.1, c/n WA102, f/f:? del Royal Navy as XS123, 08/07/1963 w/o 24/03/1965. 1965-03-24 A 40nm NW of Pulau Pinang820Sq Wessex HAS.1 as /291-E ditched and sank in the Malacca Strait, while operating from HMS Eagle. Send Updates Use APP to upload photo @ (optional) When Now? / / Send