Officials say vaping co-pilot caused Air China flight to drop 21000 feet

Officials say vaping co-pilot caused Air China flight to drop 21000 feet  Fox News An Air China pilot accidentally cut off oxygen to its passengers while trying to hide his vaping from his boss  Business Insider Vaping Pilot Trying to Hide E-Cig Cloud Accidentally Sends Passenger Flight Plummeting  GizmodoFull coverage

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