Research on Application of Reliability Data in Fault Diagnosis of Civil Aircraft

Reliability data are statistical record of the history failure,which imply a large amount of information guiding the troubleshooting for the maintenance.In order to improve the efficiency,reduce the time of troubleshooting and ensure the flight on schedule,a calculation model based on reliability data for fault diagnosis of civil aircraft was proposed.The data collected from the reliability report were applied to diagnose the permanent fault of air-conditioning system for A320-200 aircraft of an airline,and 3 fault sources from 8 possible parts of the temperature control components package were summarized by using RS,then their comprehensive fault rates were calculated.The results were verified by Weibull distribution at last.Conclusion shows that the introduction of the method can locate fault sources precisely,and achieve a successful troubleshooting which greatly reduces the maintenance time in practice.