Chinanews Client, August 13 (Zhang Xu) On the 13th, the Civil Aviation Administration announced the results of the investigation into the Shenzhen Airlines cabin decompression incident and the China Eastern Airlines mechanical failure return incident on August 9. Wu Shijie, deputy director of the Aviation Safety Office of the Civil Aviation Administration, stated on the 13th that on August 9th, Shenzhen Airlines passenger 330-343 aircraft flew 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. Follow the procedures and declare an emergency descent, then return to Shenzhen Airport. During the whole process, the unit was operated correctly 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, "The above two mechanical failures have a certain probability of occurrence. The routine repetitive training that pilots must conduct every year includes similar subjects. The crew can be proficient and correct in handling to ensure flight safety."