According to British Military Aircraft Accidents: The Last 25 Years by Daviver, the only aircraft lost on that date was a RN Whirlwind HAR9 of the Lee-on-Solent SAR flight that came down on Peel Common, Hants. It would appear that the only aircraft lost by 84 Sqn since operating helicopters was a Wessex HU5, XS518, that went in to Limassol Bay on 4th Nov 86. No Puma has ever been lost in Cyprus. Where now the story??