Pilot who was smoking, caused Air China plane to drop down to 6,500m close to the ground

​ Image copyrightREUTERSImage captionAir China is one of the country’s main carriers A co-pilot smoking an e-cigarette on an Air China flight caused the plane to start a rapid emergency descent, investigators have said. They say he tried to hide the fact that he was smoking but accidentally shut off the air-conditioning, causing oxygen levels … Continue reading Pilot who was smoking, caused Air China plane to drop down to 6,500m close to the ground