关键词: 不正常事件, 民航安全, 扎根理论, 灰色关联分析

Abstract: Analyzing the causes of civil aviation abnormal events is of great significance for preventing aviation accidents.
Based on the data of abnormal events from the Air Traffic Management Bureau in a certain region from January to
November 2023, the grounded theory was employed for systematic analysis. The key causal factors were identi鄄
fied through three-level coding, and the grey relational analysis model was applied to quantify the grey relation
degree between each factor and the occurrence of abnormal events. The results demonstrate that this method can
accurately reflect the influence of different factors on abnormal events. The causal factors mainly include human
factors, equipment factors, environmental factors and management factors, with relational degrees of 0.65, 0.79,
0.67 and 0.85, respectively. Among these factors, management factors exhibit the strongest relation. Therefore,
management factors should be a key focus in civil aviation operation safety

Key words: abnormal evens, civil aviation safety, grounded theory, grey relational analysis