Abstract
As an important instruction recording device for civil aircraft, Quick Access Recorder (QAR) records the operating status of various aircraft systems. Therefore, QAR data is an important basis for aircraft safety assessment, maintenance inspection and failure analysis[1][2]. The Terrain Avoidance Warning System (TAWS) provides the crew with a near-ground warning based on the aircraft’s current track information (including the aircraft’s current position, air pressure altitude, ground speed and track angle, etc.) and referring to terrain altitude data, obstacle data and airport data information. Generally, the QAR data can be used to obtain a more accurate judgment when a warning occurs in the TAWS system. Through the quantitative analysis of QAR data, this paper finds out the root cause of over speed approaching terrain warning in the flight process of an aircraft.
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