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. The disabled helicopter was forced to crash-land in an open field; the aircraft and its crew were eventually recovered by British forces.