What type of maintenance is carried out after a fault is recognized?

Corrective maintenance is performed after a fault is recognized. This type of maintenance focuses on addressing issues that have already occurred, such as repairing or replacing faulty components to restore a system to its operational state. It involves diagnosing the problem, implementing repairs, and ensuring that the equipment is back in compliance with operational standards.

In contrast, preventative maintenance is performed proactively to prevent potential issues before they arise. Scheduled maintenance is a form of preventative maintenance that is planned and executed at specific intervals. Emergency maintenance is an unplanned repair needed to address critical failures that require immediate attention to avoid further damage or safety hazards. These distinctions highlight why the correct response is corrective maintenance, as it directly relates to addressing problems that have already manifested.