33: Periodic Maintenance Issue
Definition/Typical Issues
Was the frequency of the periodic maintenance incorrect (i.e., too long or too short)? Was the scope of the periodic maintenance activity inappropriate (i.e., too broad or too narrow)? Was the maintenance activity incorrectly performed?
Note 1: The Scope Issue (#34) node addresses which periodic maintenance activities were supposed to be done. The Frequency Specification Issue (#35) node addresses when they were supposed to be done. The Implementation Issue (#36) node addresses what was actually performed.
Note 2: Periodic maintenance is sometimes referred to as preventive maintenance.
Examples
Example 1
- Periodic maintenance (a calibration) was being performed on a truck scale every 3 months. However, an investigation by an outside regulatory agency revealed that the scale was routinely out of specification. The company subsequently changed the required calibration frequency to once per month after the company was fined for shipping overloaded trucks.
Example 2
- Periodic maintenance was being performed on a furnace every week to prevent a buildup of powdered material. However, only the main chamber was being cleaned. Other portions of the furnace were not being cleaned and, as a result, the performance of the furnace degraded over time.
Typical Recommendations
- Ensure that periodic maintenance tasks are being performed as scheduled.
- Ensure that periodic maintenance activities address all portions of equipment.
- Review maintenance procedures to ensure that they provide adequate guidance based on the experience level of the personnel who will be using the procedures.
- Provide training for personnel on periodic maintenance techniques.
Cross-References
| Version 10 Element(s) | |
|---|---|
| Node ID | Node Name |
| 32 | Preventive Maintenance LTA |
| Maritime Element(s) | |
|---|---|
| Node ID | Node Name |
| 41 | Planned Maintenance Issue |