WEIBULL ANALYSIS on the NACES BAROSTATIC RELEASE UNIT

摘要

Hard Time Tasks setting life limits on several criticalcomponents used on the Naval Aircrew Common EjectionSeat (NACES) have not yet been determined. This reportdocuments a statistical Weibull analysis using Fleetreported Organizational Level data from the NavalAviation Logistics Data Analysis (NALDA) system andMartin Baker Aircraft Company, LTD. (MBA) failuredata, collected from their Failure Summary and AnalysisReports, on the NACES Barostatic Release Unit (BRU).Weibull Analysis requires life data that is relevant to thefailure mode. This analysis does not provide a failureprediction primarily because failure modes within the datacould not be segregated. This report recommendscollection of appropriate failure data at the componentpoint of repair. It also recommends that bothNAVAIRSYSCOM and MBA further consider theReliability Centered Maintenance default methods asexplained in NAVAIR 00-25-403. The methodologydiscussed in this paper may have wider application toanyone involved in balancing component service life/costversus reliability/safety.