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Mean Time Between Unscheduled Removal (MTBUR)

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Article Information
Category: Airworthiness Airworthiness
Content source: SKYbrary About SKYbrary
Content control: SKYbrary About SKYbrary
Publication Authority: SKYbrary SKYbrary

Definition

This is an operational measurement. If all removals were because of actual component failure then MTBUR would be equivalent to Mean Time Between Failure (MTBF), but that is not usually the case and so Mean Time Between Unscheduled Removal (MTBUR) is usually less than Mean Time Between Failure (MTBF).

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