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Maintainability is one of the key factors, it decides the product quality,life span, maintenance cycle and cost.It is a kind of design attributes and increasingly brought to the attention of the parties, especially in the aviation maintenance system.The plane entered the stage of repair, aerial equipment needed maintenance design,Aiming at the problem of no input information of determine the collector maintenance support resources,Put forward a method based on information of FMECA analysis.First introduces the FMECA,secondly analyses the collector task function, composition structure and the reliability block diagram, again according to the failure mode and effect of each module, harmfulness and basic maintenance measures, Prepare a list of the FMECA the maintainability information analysis.Finally analyzing harmfulness and map the harmfulness of matrix,To avoid the blindness and subjectivity of traditional maintainability analysis method, That information analysis method of FMECA in the aviation product maintainability analysis has good application and popularization value.