On August 13, the Civil Aviation Administration of China held a regular press conference in Beijing. Wu Shijie, deputy director of the Aviation Safety Office of the Civil Aviation Administration, announced the results of the investigation of the Shenzhen Airlines cabin decompression incident and the China Eastern Airlines mechanical failure return incident on August 9.

  On August 9th, Shenzhen Airlines passenger 330-343 aircraft carried out a flight from Shenzhen to Xi'an. When it rose to 9,200 meters in the Guangzhou area, the cabin altitude and cabin pressure warning message appeared. The crew handled the procedure and announced an emergency descent, and then returned to Shenzhen Airport. .

  Wu Shijie said that the whole process was correct and handled properly. After investigation, the incident was caused by a faulty seal on the rear cargo door of the aircraft. Cockpit decompression events are usually caused by cockpit, cargo compartment sealing problems or failure of the air conditioning booster system.

  On the same day, China Eastern Airlines passenger 330-243 aircraft carried out a flight from Chengdu to Beijing. During the flight, an engine instrument display failure occurred. Considering the engine instrument display problem and the expected thunderstorm when landing at Beijing Capital Airport, the crew and the airline jointly made decisions and prepared. Arrive at Xi'an Xianyang Airport. After the aircraft landed, it was found that the electronic control computer of the engine was faulty, and it returned to normal after replacement.

  Wu Shijie said that the above two mechanical failures have a certain probability of occurrence. The routine repetitive training conducted by pilots every year includes similar subjects. The crew can be skilled and handled correctly to ensure flight safety.

  Reporter Liu Chao Beijing Reporting Editor Gao Yuhui

Editor in charge: 【Luo Pan】