The Research On Structure Maintenance Task Determination Method For Civil Aircraft

This paper is the study based on ARJ21 maintenance program item which is done by the RMS center of the Civil Aviation College, NUAA and AVIC I Commercial Aircraft Co., Ltd. The paper emphasizes the study on the structure maintenance task analysis and determination, to provide a realistic and practical approach on establishing the maintenance program more economical and reasonable.Determination the structure maintenance task is one of the most important content in maintenance program. In the first place, this paper analyze some general methods for determine the structure maintenance task of civil aircraft. And do some research on these methods, such as elements and the steps of them. Secondly, under the tack of the related information inland, the method of establishing maintenance task for new developed aircrafts is proposed by some maintenance program development policy and procedures handbooks of many types of aircrafts and some MRBR of some international mainly aircraft models, which includes confirming indexes for evaluation, establishing the indexes rate, integrating the index rates, defining the intervals of maintenance tasks, and setting up the corresponding relations between rates and intervals of the AD and ED. The aircraft structure damage assessing methods from MSG-3 is put to determine the check intervals for aircraft structure. Thirdly, using the Analytic Hierarchy Process, optimize the identification of maintenance inspection interval. At last, based on the theory of damage tolerance design and CBM, do some research on determine FD check interval of civilian aircraft.