51: Corrective Maintenance Issue
Definition/Typical Issues
Was the problem misdiagnosed? Was the corrective maintenance repair performed incorrectly?
Note 1: Corrective maintenance deals with failures that have already occurred and impending failures that have been identified by other maintenance types. When the other maintenance tasks identify the need for corrective maintenance to repair or restore a component to service, the corrective maintenance activity is addressed by the Corrective Maintenance Issue (#51, #52, #53) nodes.
Note 2: The Troubleshooting/Corrective Action Issue (#52) node addresses problems with determining what repair/restoration activities need to be performed. The Repair Implementation Issue (#53) node addresses problems with performing the repair.
Examples
Example 1
- Mechanics' job performance was judged by how many work requests they completed. As a result, they tried to diagnose the problem as quickly as possible. This led to rework when the original repairs failed to correct the problem.
Example 2
- An inexperienced mechanic incorrectly repaired a pump seal, which subsequently leaked. He inserted one of the rubber seals backwards. The procedure provided no guidance other than to "install the rubber seals."
Typical Recommendations
- Provide troubleshooting guides based on equipment failure analyses for diagnosis of failed components.
- Review maintenance procedures to ensure that they provide adequate guidance based on the experience level of personnel.
- Provide training for personnel on troubleshooting processes.
- Provide training for personnel on repair techniques.
- Perform post-maintenance testing to ensure that the maintenance is properly performed and corrects the problem.
Cross-References
| Version 10 Element(s) | |
|---|---|
| Node ID | Node Name |
| 29 | Corrective Maintenance LTA |
| Maritime Element(s) | |
|---|---|
| Node ID | Node Name |
| 56 | Corrective Maintenance Issue |