Investigators say failure of an engine fan blade caused a United Airlines jet to lose power in one of its two engines over the Pacific last month.
The National Transportation Safety Board said Tuesday that a fan blade separated and led to the loss of the cover on the right-side engine of the Boeing 777 on Feb. 13.
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The engine failure occurred as the plane with 363 passengers and 15 crew members approached Hawaii from San Francisco. The pilots shut down the engine after getting a warning of a compressor failure. They made a safe emergency landing in Honolulu.
The preliminary report from investigators did not identify what caused the initial failure of the blade in the Pratt & Whitney engine.
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