Video has emerged of the dramatic moment a Sichuan Airlines flight declared emergency because a broken cockpit window.
A co-pilot was partially sucked out of the Airbus A319 after the windshield blew out at a height of 32,000 feet.
Two crew members were injured in the Flight 3U8633 incident, including the co-pilot suffering a head injury.
The footage shows oxygen masks being released in the cabin, due to the change in air pressure on board.
Flight 3U8633 was enroute to Chongqing from Lhasa when the window blew out in the skies above Chengdu.
Captain Liu Chuanjian told the Chengdu Economic Daily that everything seemed normal before the air pressure and temperature in the cockpit rapidly dropped.
"There was no warning sign. Suddenly the windshield just cracked and made a loud bang. The next thing I know my co-pilot had been sucked halfway out of the window."
He went on to describe the terrifying chaos that followed.
"Everything in the cockpit was floating in the air. Most of the equipment malfunctioned - and I couldn't hear the radio. The plane was shaking so hard I could not read the gauges."
The Civil Aviation Administration of China has confirmed they are investigating.
None of the 119 passengers on-board the Airbus A319 were injured, but some of those evacuated from the aircraft on the ground complained of tinnitus.
Passengers were transferred to another aircraft to continue their journey.
It's the latest in a series of incidents involving broken windows on aircraft.
Earlier this month, a window smashed on a flight from Chicago to New Jersey, and just a few weeks before that a woman was killed when she was partially sucked out of a smashed window on-board a Southwest Airlines flight.