Failure Mode, Effects and Criticality Analysis
Failure Mode, Effects and Criticality Analysis, or FMECA, extends FMEA by adding a more explicit assessment of failure-mode criticality.
What this term means in maintenance
Failure Mode, Effects and Criticality Analysis, or FMECA, extends FMEA by adding a more explicit assessment of failure-mode criticality.
How FMECA differs from FMEA
Both methods identify failure modes, effects, causes, and controls. FMECA adds a stronger criticality assessment so the team can prioritize the failure modes that create the greatest risk.
Typical information
A FMECA may include:
- Asset function
- Functional failure
- Failure mode
- Failure effect
- Failure consequence
- Cause
- Existing controls
- Severity
- Occurrence
- Detectability
- Criticality classification
- Recommended action
Practical example
A cooling-system analysis identifies loss of pump flow, blocked heat exchanger, sensor failure, and control-valve failure. The team ranks each mode according to production, safety, and recovery consequences.
How maintenance uses FMECA
The results may influence:
- PM tasks
- Condition monitoring
- Critical spares
- Alarm and protection design
- Inspection frequency
- Failure-response plans
Common mistake
A complex scoring method does not compensate for vague failure modes or weak evidence. The analysis must still reflect the actual equipment and operating context.
Related concepts
Related maintenance terms
Keep exploring connected CMMS, reliability, and maintenance planning terms.
Failure Mode and Effects Analysis
Failure Mode and Effects Analysis, or FMEA, is a structured method for identifying how an asset or process may fail, the effects of each failure, existing controls, and actions needed to reduce risk.
Asset Criticality
Asset criticality is a structured assessment of how strongly an asset failure could affect safety, environment, quality, production, compliance, cost, and recovery.
Reliability-Centered Maintenance
Reliability-Centered Maintenance, or RCM, is a structured method for selecting maintenance and risk-control tasks based on asset functions, failure modes, consequences, and technically effective actions.
Glossary FAQs
- What does FMECA stand for?
FMECA stands for Failure Mode, Effects and Criticality Analysis.
- How is FMECA different from FMEA?
FMECA adds a more explicit criticality assessment to the failure-mode and effect analysis.
- How is FMECA used in maintenance?
It supports PM design, inspection, condition monitoring, spare-parts strategy, and risk prioritization.