Helicopter Westland Wessex HAS.1 Serial wa269 Register XS889 used by Fleet Air Arm RN (Royal Navy). Built 1966. Aircraft history and location Aircraft History XS889 Fleet Air Arm Westland HAS.1, c/n WA269, f/f: 20/04/1966 del Royal Navy as XS889, 06/05/1966 scr. Yeovilton 06/1979. 1978-11Nov78 as 771Sq /CU-523 771 NAS 1979-06 A EGDY Burnt to Yeovilton fire dump (still wearing /523-CU) by Jun 1979. Burnt by Jul 1979 Send Updates Use APP to upload photo @ (optional) When Now? / / Send