Safety Evaluation of Aircraft in Final Approach Based on QAR Data

In order to quantify the safety of the aircraft in the final approach phase, based on the Quick Access Recorder (QAR) data, the safety evaluation model of the aircraft in the final approach phase was established by using grey fuzzy comprehensive evaluation method. Grey clustering method was used to determine the safety grade of each indicator. Finally, the feasibility and applicability of the model were verified by the collected QAR data. The results show that the model calculation results are intuitive and accurate and can he used to evaluate the safety of aircraft in the final approach phase. Further softwarization of the model can support safety evaluation of aircraft in the final approach phase of airlines.