No Fault Found Events During the Operational Life of Military Aircraft Items

作     者：J.Block T.Tyrberg P.Sderholm 

作者单位：Saab Aerotech LinkpingSweden Lulea University of Technology LuleaSweden 

会议名称：《The 8th International Conference on Reliability,Maintainability and Safety(ICRMS 2009)》

会议日期：2009年

学科分类：08[工学] 082503[工学-航空宇航制造工程] 0825[工学-航空宇航科学与技术] 

基　　金：Swedish National Aeronautics Research Program(Nationella flygtekniska forskningsprogrammet NFFP) project number NFFP4-S4403 and Saab Acrotcch 

关 键 词：no fault found(NFF) military aircraft operational life Sweden 

摘      要：正No Fault Found（NFF） events are critical and well-known problems for certain aircraft *** paper presents a study of these events for repairable items with on-condition maintenance,based on operational data from a military aircraft Some findings are that:the number of NFF events is influenced by item type and number of repairs;most NFF events are initiated by faults recognized during operation;and different inspections contribute to NFF ***,item design and tests at different operational modes and maintenance echelons should be better aligned to reduce the number of NFF events.