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The UK Air Accidents Investigation Branch's (AAIB) final report on the Jan 2008 crash of a twin-engine British Airways Boeing 777 while landing at London Heathrow Airport concludes that an "unrecognized icing problem at the time" caused the accident. The AAIB's final report remains faithful to preliminary reports on the accident involving Rolls-Royce RB211 Trent 800-powered Boeing 777s.
On January 17, 2008 a BA B-777-236ER (G-YMMM) experienced a dual engine rollback on final approach and crashed short of the runway at Heathrow Airport. British Airways Flight 38 was arriving from Beijing. UK accident investigators noted that during the flight the Boeing 777 passed through a region of particularly cold air (with ambient temperatures as low as -76 degrees C) between the Urals and Eastern Scandinavia.
The AAIB said ice in fuel lines "most probably" caused the Trent 800-equipped B-777 to lose all power just prior to landing on Runway 27L at London Heathrow. The crash heavily damaged the new jetliner, but there was no loss of life.
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