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Bathtub Curve
From SKYbrary Wiki
| Article Information | ||
|---|---|---|
| Category: | Airworthiness | 
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| Content source: | SKYbrary | 
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| Content control: | EUROCONTROL | 
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| Publication Authority: | SKYbrary |
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Definition
This curve describes the typical equipment failure rate against time since fit and takes the shape of a bath tub cross section. The initially very high failure rates due to ‘infant mortality’ are followed by very low failure rates typical within the useful or design life of a component. With increasing time, this is followed by a period of progressively increasing failure rates as ‘wear-out’ takes over. This finding is the basis of maintenance Reliability work.