In which scenario would corrective maintenance be necessary?

Corrective maintenance is specifically required when an equipment failure has occurred. This type of maintenance involves identifying and rectifying faults in equipment to restore it to proper operational status. It is typically unplanned and requires immediate attention to resolve issues that disrupt operational readiness or safety.

Regular maintenance practices, such as scheduled maintenance, routine inspections, and preparing maintenance reports, do not fall under the category of corrective maintenance. Scheduled maintenance is designed to prevent failures by performing maintenance tasks at regular intervals, while routine inspections are aimed at identifying potential issues before they lead to equipment failure. Preparing maintenance reports is more about documentation and analysis rather than actively addressing faults. Hence, the scenario best suited for corrective maintenance is when an equipment failure occurs, necessitating prompt action to ensure functionality and safety.