1988 British Army Lynx shootdown
On 23 June 1988, an Army Air Corps (AAC) Westland Lynx, serial number XZ664, was shot down by the Provisional Irish Republican Army (IRA) near Aughanduff Mountain, County Armagh, in Northern Ireland. A unit of the IRA's South Armagh Brigade fired at the British Army helicopter using automatic rifles and heavy machine guns.
Source: Wikipedia — 1988 British Army Lynx shootdown (CC BY-SA 4.0)