What must be initiated when a discrepancy is identified during PMS maintenance?

When a discrepancy is identified during Planned Maintenance System (PMS) maintenance, it is essential to initiate a Trouble Discrepancy Report (TDR). This report serves as a formal documentation process for any irregularities or issues encountered during maintenance activities. The purpose of the TDR is to ensure that problems are recorded, assessed, and addressed appropriately, facilitating the proper follow-up actions to rectify the identified issues.

A TDR captures critical information about the discrepancy, such as the nature of the problem, the equipment involved, and any immediate corrective actions taken or recommended. This ensures that the discrepancy is not only acknowledged but also relayed to the appropriate personnel for further investigation or resolution.

In contrast, while a Maintenance Request Form may also relate to equipment issues, it typically initiates a request for maintenance rather than documenting an issue found during maintenance. An Equipment Failure Report focuses on the failure of equipment rather than discrepancies identified during inspections or planned maintenance. Similarly, a Safety Incident Report addresses incidents specifically related to safety, which does not encompass all types of discrepancies that may arise during PMS maintenance. Therefore, the initiation of a Trouble Discrepancy Report is the most appropriate and specific action to take when a discrepancy is noted in this context.