What is Failure Modes and Effects Analysis?

A defintion of Failure Modes and Effects Analysis (FMEA)

Failure Modes and Effects Analysis is a structured method of determining equipment functions, functional failures, assessing the causes of failures and their failure effects. The first part of a Reliability Centered Maintenance analysis is a Failure Modes and Effects Analysis.

Benefits from Failure Modes and Effects Analysis:
- It provides designers and maintenance engineers with an understanding of the structure of the system, and the factors which influence reliability.
- It helps to identify items that are reliability sensitive or of high risk, and so gives a means of deciding priorities for corrective action.
- It identifies where special effort is needed during manufacture, assembly or maintenance.
- It establishes if there are any operational constraints resulting from the design.
- It gives assurance to management and/or customers that reliability is being or has been properly addressed in the project.

adapted from Patrick Barry and Tony Doyle: Maintenance Techniques and Analysis

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