system of drawing a small cross on the windscreen with a chinagraph pencil. In sandy conditions, these weapons could jam, which necessitated one of the free crew leaning out of the cockpit door and 'booting' the offending weapon in the hope of clearing it. This procedure was not strictly in accordance with the flight reference cards. The L7A1 pintle-mounted weapon was operated by a door gunner. In the anti-tank role, four SS.11 ATGWs were carried; these could be carried in conjunction with the pintle-mounted GPMG. During the Falklands campaign, the SS.11 achieved some success, being used to attack Argentine positions on 14 June 1982. For night time reconnaissance, the Scout could carry four parachute flares mounted on special carriers. In addition, two smaller parachute flares could be carried to allow emergency landings at night. These were fitted on the starboard rear fuselage on a special attachment point. About 150 Scout helicopters were acquired for the Army Air Corps, which operated them until 1994. The way British military aviation has been established has meant that the Royal Marines have never actually "owned" their own aircraft. The larger Westland Whirlwind, Westland Wessex and Westland Sea Kings have been Fleet Air Arm helicopters and, like today's Westland Lynx AH Mk 7, the Scout AH Mk 1s operated by 3 Commando Brigade Air Squadron (3 CBAS) were British Army helicopters on loan. 3 CBAS flew the Scout from 1971 through to 1982, when it was replaced by the Westland Lynx, and the squadron was eventually renumbered as 847 Naval Air Squadron. The Scout saw operational service in Borneo during the Indonesia–Malaysia confrontation, the Aden Emergency, Oman, Rhodesia, Northern Ireland and then in the South Atlantic. The Territorial Army (AAC) formed 666 Squadron with a number of Scouts in the late 1980s. Borneo Mystery still surrounds a Scout that went missing 20 September 1965. XR599 set off for a night flight from Lundu to Kuching, the mission being to transport a local communist suspect to the Sarawak capital for interrogation. At 23:00 hrs, the aircraft was posted as missing and a search and rescue mission was mounted. Although the aircraft and the remains of the pilot, the escort rifleman and the suspect were never found, a fisherman later dredged up small parts of the aircraft wreckage. On 23 September, the Singapore newspaper The Straits Times, printed a story speculating that the Scout had been hijacked