Air China Jet Plunged 25,000ft Because Pilot Was VAPING In The Cockpit

Jet plunged 25,000ft because pilot was vaping in the cockpit and caused decompression when he turned off the air conditioning in a bid to hide the smoke

An Air China jet that plunged 25,000ft in an emergency descent did so after a co-pilot mistakenly turned off air-conditioning systems in a bid to conceal his e-cigarette smoke. Smoking is not allowed aboard Chinese commercial passenger flights. The incident, which resulted in the deployment of passenger oxygen masks, occurred Tuesday on a flight by the Chinese flag carrier from Hong Kong to the city of Dalian in northeastern China. Source