45: Monitoring Issue
Definition/Typical Issues
Was there a failure to perform the monitoring activities? Were some equipment or components not monitored? Did the monitoring fail to detect a failing component? Was there a failure to perform the monitoring frequently enough?
Examples
Example 1
- A number of pump bearings have failed recently. Condition-based maintenance was selected as the appropriate type of maintenance to detect the impending failure of the pump bearings. However, monitoring of the pump bearings was never performed even though it was identified as a requirement in the equipment reliability program.
Example 2
- The three supply fans for the assembly building were all supposed to be monitored for vibration as part of condition-based maintenance. Only two of the three fans were being monitored. The third fan was difficult to access.
Example 3
- Pump bearings were being monitored for failure. However, by the time the impending failure could be detected, there was insufficient time to perform the corrective maintenance. Increasing the frequency of the monitoring allowed the impending failures to be detected earlier.
Typical Recommendations
- Ensure that equipment condition monitoring is being performed.
- Ensure that all pieces of equipment are being monitored.
- Ensure that all components (points) are being monitored for each piece of equipment.
- Based on the results of tests and inspection activities, make appropriate adjustments to the inspection or test interval.
Cross-References
| Version 10 Element(s) | |
|---|---|
| Node ID | Node Name |
| 38 | Monitoring LTA |
| Maritime Element(s) | |
|---|---|
| Node ID | Node Name |
| 46 | Scheduling Issue |
| 48 | Monitoring Issue |