An analytic model for computing optimal screening intervals for replacing life-limited parts in the F100PW100 aircraft engine is presented. The model involves determining the point in advance of a part life limit where the marginal cost of replacing a part equals the marginal expected cost of not replacing the part. The policy results in a set of Conditional Part Level (CPL) screens conditioned on the status of the module and engine at the time of engine removal. The policy is evaluated through comparison with a base/depot screening approach. The evaluation is accomplished through a simulation of the 20-year life cycle of the F100 engine. The evaluation demonstrates the economic and performance advantages of the CPL screening policy. Model assumptions include independent part failures and exponential failure distributions for parts without life limits. Further investigation of the impact of the assumptions is suggested.
An analysis of opportunistic maintenance policy for the F100PW100 aircraft engine
Eine Analyse eines rechtzeitigen Instandhaltungsprogramms fuer das Flugzeugtriebwerk der F100PW100
US Government Reports ; Dec ; 1-49
1980
49 Seiten
Report
English
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