Airworthiness Safety Construction of Civil Aircraft Based on Operational Data

Abstract

After strict type certification of civil aircraft, there is still likely to encounter failure or unsafe condition caused by standards compliance, design or manufacturing defect, operational or environmental conditions. The various operational data reflect aircrafts’ performance. In this paper, characteristics of operational data of civil aircraft have been analysed including flight delay information, service difficulty report, performance monitoring data, engine failure monitoring data, and parts remove data. The operational data of civil aircraft have been analysed by process failure mode effect analysis and criticality analysis, Weibull distribution, etc. based on these operational data, and the relevant safety condition has been carried out by five types of methods including function hazard analysis, fault tree analysis, zone safety analysis, common mode failure, and subsystem hazard analysis. Through these characteristics and analysis method of operational data, the safety system of civil aircraft has been constructed to ensure the future safety operation.