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P-F Interval Made Simple

This one page document was developed to educate maintenance and reliability professionals with a simple understanding of the P-F Interval. This documents follows my last document on "Why people do not understand the PF Curve".

P-F Interval Made Simple

  1. 1. A DIVISION OF ALLIED RELIABILITY GROUP www.gpallied.com | GPAllied, LLC | Copyright 2013 THE P-F INTERVAL MADE SIMPLE As explained by: Ricky Smith, CMRP “A potential failure is an identifiable physical condition which indicates a functional failure is imminent” “A functional failure is the inability of an item (or the equipment containing it) to meet a specified performance standard” • A Potential Failure is when a defect is detected in a system and if not corrected will become a Total Functional Failure. P – Potential Failure F – Total Functional Failure • Predictive technologies are typically used to identify a Potential Failure. • The process typically used to correct a Potential Failure is Preventive Maintenance – restoration.

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