37: Event-based Maintenance Issue
Definition/Typical Issues
Was the scope of the event-based maintenance inappropriate? Was there a failure to perform event-based maintenance when it should have been performed (i.e., following a shutdown, before a startup, at the beginning of winter)? Was the work incorrectly performed?
Note 1: The Scope Issue (#38) node addresses problems with what (the scope) should be done. The Event Specification Issue (#39) node addresses selection of the appropriate triggering event. The Monitoring Issue (#40) node addresses problems with determining when the triggering event occurs. The Implementation Issue (#41) node addresses performance of the repair activity.
Note 2: Event-based maintenance is sometimes referred to as proactive maintenance.
Examples
Example 1
- Product barrels were cleaned as they were returned from customers. Dust would accumulate in those barrels that were not used for an extended period. The dust contaminated the product. Cleaning was switched to shortly before use instead of when the barrels were returned from the customers.
Example 2
- Cranes were supposed to be inspected and lift-tested prior to lifting any item that was greater than 70% of the crane's rated capacity. These inspections and tests were never performed because the crane operators were unaware of this requirement.
Example 3
- Furnace crucibles (i.e., the containers used to melt and transport molten metals) were to be cleaned whenever the furnace was scheduled to be shut down for more than 8 hours. Operations never told maintenance when the scheduled shutdowns would occur. As a result, the cleaning was not performed as required.
Typical Recommendations
- Ensure that triggering events for event-based maintenance are appropriate for the component.
- Ensure that monitoring is performed to determine when triggering events occur.
- Review maintenance procedures to ensure that they provide adequate guidance based on the experience level of personnel.
- Provide training for personnel on monitoring and maintenance techniques.
- Review the event-based maintenance schedule and completed work requests to ensure that all required activities are being performed.
Cross-References
| Version 10 Element(s) | |
|---|---|
| Node ID | Node Name |
| 41 | Proactive Maintenance LTA |
| Maritime Element(s) | |
|---|---|
| Node ID | Node Name |
| 51 | Shore-based Maintenance Issue |