Air China Flight CA106 from Hong Kong to Dalian in China lost height a half-hour in the scheduled 5:55 pm trip.
Air China reportedly has placed pilots from a Tuesday flight under investigation amid claims that the crew was smoking in the cockpit, so the cabin of the decompression and forced the aircraft to a decline of 21,000 feet in 10 minutes.
Flight CA106 from Hong Kong to Dalian in China lost height a half-hour in the scheduled 5:55 pm trip. The drastic decline causes release of oxygen masks in the cabin from the ceiling, which was captured by a passenger and posted on social media.
According to one of the passenger on board, “The announcement from the cockpit said the ability to increase the oxygen in the cabin goes down, so the plane lost pressure.”
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During the announcement, the pilots said that the aircraft was executing an emergency descent due to cabin decompression, South China Morning Post reported. The plane fell from 35,000 feet to around 14,000 before the plane levelled off and began to climb to cruising altitude, according to the flight tracking site FlightAware.
The flight continued as planned and landed in Dalian without incident.
Cathay Pacific Airways pilot and aviation safety expert David Newbery, who is also chairman of the Hong Kong Airline Pilots Association, told the Post that the pilot responded appropriately in the case of condensation.
“The standard would usually see a plane load of condensation landing at the nearest suitable airport – not in the least to calm the passengers, who would seriously be afraid,” Newbery said. “However, if there is nothing structurally wrong with the aircraft, but the commander could choose to go to a more distant airport.”
However, the Communist newspaper the People’s Daily, said the crew was suspected to be smoking in the cockpit, which is the cause of the decline.
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Air China didn’t immediately respond to Fox News’ request for comment, but released a statement on Weibo, the confirmation of the pilots were under investigation by the Civil Aviation Administration of China, the Post reported.
“If the investigation shows that the crew had violated the rules, the company will seriously deal with the responsible person with zero tolerance,” Air China said on Weibo.
The aircraft is being examined. Some Air China flights scheduled for the Boeing 737 were cancelled Wednesday.
Alexandra Deabler is a Lifestyle writer and editor for Fox News.