Tibet Airlines Flight 9833

Tibet Airlines Flight 9833 was a scheduled commercial passenger flight in China from Chongqing to Nyingchi by Tibet Airlines. On 12 May 2022, the A319-100 aircraft operating the service suffered a runway excursion, causing both engines to separate, followed by a fire near the front of the aircraft. 36 people were injured during the evacuation.

Incident
During the aircraft's takeoff roll on runway 03/21, the pilots experienced an "abnormality" and aborted the takeoff. The plane veered off the runway, its engines detaching in the process. The engines, as well as the front of the aircraft, subsequently caught on fire. All 122 passengers and crew evacuated with 36 of them suffering minor injuries.

Aircraft
The aircraft involved was an Airbus A319-115, MSN 5157, registered as B-6425, which was manufactured by Airbus Industrie in 2012. The aircraft had logged 28364 airframe hours and around 14495 takeoff and landing cycles. It was equipped with two CFM international CFM56-5B7/P engines.

Investigation
One week after the accident the Civil Aviation Authority of China (CAAC) open the investigation.

Due to preliminary informations the airplane aborted the takeoff and veered off the runway. A fire to the fuselage come after the crash, but all occupants managed to escape safely from the airplane. Both engines detached from the aircraft as a result of sliding on the taxiway surface before coming to a stop.

On 4 August 2023, CAAC announced that technical investigation of the accident had completed, the cause had been found and the final report would be released to the public.

The CAAC Southwest Regional Administration released its report on 5 June 2024 (in Chinese language only): an English version of the report is also available. It found that the accident was caused by crew error. The CAAC imposed a CN¥900,000 fine on Tibet Airlines and fined the company's leadership: The two executives primarily responsible were fined 40% of their 2021 income, while three others responsible were fined 30% of their 2021 income. The CAAC also revoked the pilot's licenses of the captain and co-captain and suspended the first officer's pilot's license for six months.