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Research on Safety Performance Monitoring Method Based on the Analysis of Low Consequence Events

Safety risk analysis and safety performance management driven by information based on aviation safety reports are the core of safety management. In order to get the safety performance low consequence monitoring indicators to evaluate characteristics of the approach phase, 460 abort approach/go around events caused by flight crew in the past two years collected by civil aviation of China were chosen. Based on the analysis of the instrument approach procedure and the accident-causing theory, 9 types and 27 flight status indicators were obtained. For the indicators need to be independent, balanced and measurable, two-level safety performance indicators were designed according to the frequency and importance of each status indicator.. The serious consequence events that may be caused by the low consequence indicators were selected. Based on the risk analysis model of information entropy, the entropy and entropy weights of each low consequence indicator were calculated to evaluate the risk value of the serious consequence. By warning the core risk which links to the serious consequence event with risk value of certain level, safety performance can be monitored. The results showed that the safety performance monitoring indicators can be obtained through the analysis of low consequence events. Based on the information entropy-based risk analysis model, the risk value of the serious consequence events during the period can be used to do targeted monitoring and control, thus improving the monitoring effect.