Helicopter Westland Wessex HU.5 Serial wa161 Register XS487 used by Fleet Air Arm RN (Royal Navy). Built 1964. Aircraft history and location Aircraft History XS487 Fleet Air Arm Westland Wessex HU.5, c/n WA161, f/f:? del Royal Navy as XS487, 05/03/1964 w/o 07/04/1965. 1965-04-07 A Imber Salisbury Plain 848Sq/H-CU by Jun 1964, 707Sq/U-CU by Jan 1965, w/o 7 Apr 1965 after it hit trees on Salisbury Plain. 707 NAS Send Updates Use APP to upload photo @ (optional) When Now? / / Send