Forum: Reliability & Maintainability Questions and Answers

Topic: Reliability & Maintainability Questions and Answers

Topic Posted by: Reliability & Maintainability Forum ( )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998

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Posted by: Julien Nico ( )
Organization:Aérazur - Zodiac Group
Date posted: Thu Apr 26 8:42:37 US/Eastern 2001
Subject: MTBF calculation for new components in utilization
Could someone provide me information on the way how to calculate MTBF of a new component in utilization. My component is installed on aircraft (this type of aircraft is only use since one year and fleet still increase). I know the cumulative fleet flight hour (which is 20,000 FH). Quantity per aircraft is 3 Fields data are two components have been removed and only one failure have been confirmed (the other was no fault found). I think the MTBF is: MTBF = 3*20,000 / 1 = 60,000 FH. MTBUR = 3*20,000 / 2 = 30,000 FH. Could you please confirm if I'm right or not (and give to me the correct way to calculate it)


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