Helicopter Westland Wessex HAS.1 Serial wa258 Register XS878 used by Fleet Air Arm RN (Royal Navy). Built 1965. Aircraft history and location Aircraft History XS878 Fleet Air Arm Westland HAS.1, c/n WA258, f/f: ? del Royal Navy as XS878, 07/01/1966 to A2683, unk scr. Lee-on-Solent 08/1990. 1978-10-21 A EGDTRN: Wessex HAS.1 noted in storage at RAF Wroughton , uncoded. Send Updates Use APP to upload photo @ (optional) When Now? / / Send