A380 fan-hub disintegration traced to misunderstood ‘cold dwell’ fatigue

A380 incident close-up-c-BEA

Source: BEA

French investigators have traced the serious engine failure involving an Air France Airbus A380 over Greenland to a phenomenon known as ‘cold dwell’ fatigue, which had caused a failure in a fan hub slot which houses the root of the fan blade.

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