NTSB: Fatigue Crack Led To BA Boeing 777 Engine Fire

Event occured at Las Vegas McCarran International Airport in September 2015.

WASHINGTON—A fatigue crack in a turbine disk web and subsequent uncontained engine failure led to the Sept. 8, 2015 engine fire on a British Airways (BA) Boeing 777-236ER on takeoff from Las Vegas, the U.S. National Transportation Safety Board (NTSB) said June 20. 

The captain aborted the takeoff seconds after hearing a “bang” during the takeoff roll at Las Vegas McCarran International Airport. The flight’s destination was London Gatwick Airport; 157 passengers and 13 crewmembers on board evacuated via emergency slides.

NTSB said it found a fatigue crack in the high-pressure compressor stage 8 disk web of the aircraft’s left GE AviationGE90-85BG11 engine. The web in a turbine engine rotor disk extends radially from the disk hub to its rim. The engine failure led to the detachment of the main fuel supply line and subsequent fire.

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