1986 British International Helicopters Chinook crash 1986 British International Helicopters Chinook crash On 6 November 1986, a Boeing 234LR Chinook helicopter returning workers from the Brent oilfield crashed on approach to land at Sumburgh Airport in the Shetland Islands. At from the runway the helicopter had a catastrophic forward transmission failure which de-synchronised the tandem rotors, causing the blades to collide. The helicopter crashed into the sea and sank. 43 passengers and two crew members were killed in the crash; one passenger and one crew member survived with wounds. The helicopter was normally based at Aberdeen Airport but had been based at Sumburgh Airport since 3
Armed helicopter and support them on the ground. They were used successfully during the Scud Hunt. Other Army Special Operations include the MH-6 and AH-6 "Little Birds". The MH-6 carries special operators on benches outside the helicopters, from which they can move quickly. The AH-6 is for close air support. The MH-47 Chinook helicopter has been used to carry special operators using long-wheelbase Land Rovers and other vehicles in and out of an area of operations. For longer-range special operations, the Air Force had operated the MH-53 Pave Low helicopter with extensive avionics for navigation, flying at very low altitude, and electronic