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Analysis of typical cabin pressure loss events and countermeasures

In 2018, the incident of Sichuan Airlines 3u8633 made people realize the severity of cabin pressure loss again with an extreme situation. When the cabin loses pressure, the two threats to people are lack of oxygen and low temperature. The partial pressure of oxygen in the air at high altitude is reduced, the amount of oxygen inhaled by people is reduced, and the oxygen saturation in the blood is reduced, which will lead to hypoxia in the human body, and even make people lose consciousness and collapse suddenly. How to avoid and correctly deal with cabin pressure loss is directly related to the flight experience and life safety of passengers. The purpose of this paper is to analyze the typical cases of cabin pressure loss, explore the typical causes of cabin pressure loss, and explore the judgment and response methods of cabin pressure loss. It provides reference for pilots and aircraft maintenance personnel to analyze and deal with cabin pressure loss.