Which maintenance category is associated with periodic servicing schedules?

• A. Planned Maintenance (Periodic servicing)
• B. Preventive Maintenance
• C. Corrective Maintenance
• D. Predictive Maintenance

Answer: (A)

Periodic servicing is a set of tasks done at fixed, planned intervals. Because these actions are scheduled in advance and carried out according to a maintenance calendar, they belong to Planned Maintenance. The goal is to keep equipment reliable by pre-empting failures with routine service, rather than waiting for a fault to occur or using condition data to predict when maintenance is needed.

Corrective Maintenance happens after something has already failed, so it isn’t scheduled in advance. Predictive Maintenance relies on monitoring data to forecast when a failure will occur, rather than following a fixed schedule. Preventive Maintenance is about preventing failures, but the term in this context is framed around the act of scheduling periodic work, which aligns with Planned Maintenance.