Supervise on aircraft reliability for improving maintenance program continuously

RCM(Reliability-Centered Maintenance) philosophy logic decision methods has great applied in developing aircraft maintenance program, but the dynamic management of its process has lagged behind relatively. Because of this, the maintenance program can't earn effective verification or continuing improvement, the validity of maintenance tasks is also declined. Reliability supervision includes the collection, identification, evaluation and disposal of the various meaningful information from signs of the failure or damage is about to take place. It can dynamically verify the validity of maintenance tasks, and improve the maintenance program continuously, which is the guarantee of reliability and operational safety of aircraft. This paper keeps focus on the main problem of aircraft reliability supervision and continuous improvement of maintenance program. Which contains: Firstly, make certain supervision objects. Select those items to supervise, which have safety, operational, significant economic consequences of functionally failure with a Hazard Risk Assessment Matrix. Secondly, data collection system is established. Failures, maintenance and operation information were collected. Thirdly, method of reliability evaluation and early-warning was developed. Through the supervision and statistics of relevant reliability parameters, a trends statistical chart is drawn. Warning information is sent out while the limit value is outrun. Finally, analyses the causation and replies of problems. The causation should be found when parameter is out of alarm value. Improvement proposition about design and manufacture should be given when the product has quality problem. For the problems of maintenance program settings, perform analysis on the applicability of maintenance type, the effectiveness and rationality of maintenance interval, validity of the operation method. And then put forward concrete proposition on improving maintenance program and maintenance operation cards.