Intervals can be based on hours, cycles, calendar time or combinations and are controlled by the approved maintenance program.
Hard-time maintenance
fixed-interval maintenance Synonym
A maintenance process requiring removal, overhaul or discard at a fixed approved interval.
How the term is used
Hard-time control uses a defined life or interval regardless of apparent condition. It may apply to components, parts or scheduled tasks where reliability is managed through fixed limits.
Where you may encounter it
Planning and records systems track utilization and ensure action before the limit.
Condition or test results do not automatically extend a hard-time limit without approved authorization.