Work Order Aging
Work order aging is the elapsed time that a maintenance work order remains open or unresolved from a defined starting point.
What this term means in maintenance
Work order aging is the elapsed time that a maintenance work order remains open or unresolved from a defined starting point.
How aging is measured
Aging may be calculated from:
- Creation date
- Approval date
- Planned date
- Due date
- Last status change
The chosen definition should be clear.
Practical example
A corrective work order was approved 45 days ago and remains open because shutdown access has not been arranged. Its approval-age is 45 days.
Why aging matters
Aging helps identify:
- Forgotten work
- Long-waiting parts
- Deferred risk
- Missing ownership
- Weak planning
- Stale backlog
- Repeated postponement
Useful aging bands
Organizations may group work into 0–7, 8–30, 31–60, 61–90, and over 90 days.
Common mistake
Reviewing age without priority and asset criticality can make old low-risk work appear more important than recent high-risk defects.
How this term differs
Work Order Aging is the elapsed age of an individual unresolved work order. It is related to Overdue Work Percentage, Maintenance Backlog, and Ready Backlog, but these terms describe different records, measures, roles, strategies, or decisions and should not be used interchangeably.
Related concepts
Related maintenance terms
Keep exploring connected CMMS, reliability, and maintenance planning terms.
Maintenance Backlog
Maintenance backlog is approved maintenance work that has not yet been completed, commonly measured by job count, estimated labor hours, age, risk, or weeks of available labor capacity.
Maintenance Escalation
Maintenance escalation is the controlled process for notifying higher authority or additional functions when work, risk, delay, or failure exceeds defined limits.
Work Order Priority
Work order priority is the assigned urgency used to determine how quickly maintenance work should be reviewed, planned, scheduled, and executed.
Glossary FAQs
- What is work-order aging?
The elapsed time a work order remains open or unresolved from a defined starting date.
- Why should aging be reviewed with priority?
Old low-risk work may be less important than recent high-risk work.
- What can high aging indicate?
Missing ownership, waiting parts, weak planning, postponement, or forgotten work.