Which of the following is NOT excluded from maintenance?

Preventive maintenance is typically not excluded from maintenance activities; rather, it is a critical component of an effective maintenance program. Preventive maintenance refers to regular, scheduled actions intended to prevent potential issues and ensure that equipment operates efficiently. It is designed to identify and fix problems before they escalate into more significant failures, thereby prolonging the lifespan of the equipment and maintaining safety standards.

In contrast to preventive maintenance, other activities mentioned such as inspection and overhaul, preservation of components, and replacement of parts may sometimes be subject to exclusions depending on specific regulatory frameworks or organizational policies. However, preventive maintenance always remains a proactive measure to maintain equipment integrity and performance.