>Research on Risk Analysis of an Airport Based on QAR Data

Abstract

To strengthen the safety management and increase the risk management level of airports, the QAR(Quick Access Recorder) data related to airports were extracted to perform risk analysis. As a result, an airport risk analysis index system based on QAR data was established in this work, which involved wind shear analysis of the airport, flight quality risks, core risks of controlled flight into terrain (CFIT), and runway overrun & excursion. Meanwhile, the above-mentioned index risks were analysed based on an airport. From the extracted outcomes, it can be concluded that the wind shear risk of the airport mainly occurred in March. More specifically, more wind shear events relatively occurred at 6-7 o’clock and 7-8 o’clock (UTC time). The number of wind shear events in the final approach stage was also the highest and the Runway 20# witnessed the most wind shear events. The flight quality risks were analysed by taking B737NG for example. In addition, its index risks of touchdown speed, 50 feet-to-touchdown distance, decreasing rate from 500-50 ft, and lift-off speed exhibited obvious differences from the whole industry. The core risks of CFIT and the runway overrun & excursion also determine the specific time of alarm triggering and risk factors.