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Boeing B777 Crash After Ice Crystal Ingestion

The Boeing 777 crash landed just short of the runway at its destination.There were no fatalities but 47 people sustained injuries; one serious. Ice crystals in the fuel were blamed as the cause of the accident, clogging the fuel-oil heat exchanger (FOHE) of each engine. This restricted fuel flow to the engines when thrust was demanded during the final approach to Heathrow.Boeing identified the problem as specific to the Rolls-Royce engine fuel-oil heat exchangers, and Rolls-Royce subsequently developed a modification to its FOHE.

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