Maintenance performed after fault detection, including fault finding and reconditioning?

• A. Preventive Maintenance
• B. Planned Maintenance
• C. Predictive Maintenance
• D. Breakdown Maintenance (Corrective actions)

Answer: (D)

When a fault is detected, the work that follows—locating the cause (fault finding) and restoring the equipment to service (reconditioning)—is breakdown maintenance, also called corrective maintenance. This is a reactive approach: you only act after a failure shows up, with the goal of returning the machine to operation as quickly as possible. It contrasts with proactive strategies like preventive maintenance, which schedules work to prevent faults before they happen, and predictive maintenance, which uses condition data to time interventions just before a predicted failure. Planned maintenance is a broader term that covers scheduled tasks, but the specific activities described—diagnosing the fault and reconditioning the equipment after a fault—fit the corrective, breakdown approach.