Inspection
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Failure Mode

The manner in which an asset, component or system fails to perform its intended function.

Definition

A Failure Mode describes the specific way in which equipment, components or systems fail to meet their intended function. Examples include leakage, fracture, seizure, loss of containment, electrical short circuit or loss of signal. Failure Modes are fundamental elements of reliability engineering and are widely used in maintenance strategy development and risk assessments.

Why It Matters

Failure Modes provide a consistent framework for analyzing equipment reliability, identifying risks and selecting appropriate maintenance and inspection activities.

In Practice

Each Failure Mode may be caused by one or more Failure Mechanisms and may result in multiple operational or safety consequences.

Common Misuse

A Failure Mode describes what failed, whereas a Failure Mechanism explains how the failure physically occurred.

Term Details
Synonyms:
Failure Mode; Mode of Failure; Functional Failure
Classification:
Reliability Engineering
Concept
Intermediate
Applications

Reliability Engineering; Asset Management; Maintenance & Work Management.

Where It's Used

Reliability analysis.; Maintenance strategy.; Risk assessment.; FMEA.; Asset management.

References

IEC 60812

See It In VisualAIM

VisualAIM connects glossary concepts to the asset records, inspection histories, and workflows they describe.

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