Sichuan Airlines flight 3U8633 was reportedly about 30 minutes into its journey from the Chinese city of Chongqing to the Tibetan capital of Lhasa on at the time.
The skill of the pilot and his crew brought that plane in for an emergency landing without any injuries to the passengers.
Liu heard a loud band and looked over; the cockpit's right windshield has been blasted off.
Chuanjian said he saw his co-pilot being sucked halfway out of the window, but he managed to pull him back.
The co-pilot suffered scratches and a sprained wrist, the CAA said, adding that a flight attendant was also injured. "The plane was shaking so hard I could not read the gauges", says Liu.
The plane landed with all 119 passengers unharmed.
Pilot Liu Chuanjian told Chinese media that the aircraft, an Airbus A319, had just reached cruising altitude of 32,000ft when there was a bang in the cockpit and he realised that the right-hand side of the windscreen was gone. A week later, another Southwest flight made an emergency stop when a window broke in the cabin.
The harrowing incident comes almost a month after a woman on a Southwest Airlines flight from NY died after shrapnel from a blown engine smashed her window, forcing out part of her body. Most of the equipment malfunctioned and I couldn't hear the radio.
But in mid-April, a female passenger died after being partially sucked out of a Southwest Airlines flight in the U.S. when one of the aircraft's engines exploded.
"Then the oxygen masks dropped".
CAAC also said that the windshield was part of the original aircraft and had no previously recorded faults. "We just tried our best to reassure the passengers and make everyone believe us that we could touch down safely", Zhou Yanwen, an injured flight attendant, said according to China News Service.
Both were taken to Chengdu No.1 People's Hospital, along with 27 passengers who said they were unwell after the incident.
An investigation into the incident is underway.
Incidents involving cracked windshields do happen on a regular basis due to bird or lightning strikes but ones involving entire windshields coming off are rare.