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B777 fuel leak incident caused by open CWT purge door
31 July 2004

According to a UK AAIB report a British Airways Boeing 777 had to carry out an emergency landing at London-Heathrow when it was observed with a two-mile fuel vapour trail from the rear of the aircraft soon after takeoff. It appeared that centre fuel tank purge door was not in place. The purge door was hanging on a lanyard inside the fuel tank and a plastic bag contained screws was attached to the purge door opening. The aircraft’s pitch attitude during climb-out caused fuel to start flowing through the purge door opening into the left main gear bay. (AAIB)