Maintenance, Repair, and Overhaul (MRO) refers to the processes involved in keeping equipment and machinery in good working condition. This includes regular checks and servicing to prevent breakdowns, as well as fixing any issues that arise. For example, an airplane's engine requires routine maintenance to ensure safety and efficiency. Overhaul is a more extensive process that involves disassembling and rebuilding equipment to restore it to like-new condition. This is often necessary for complex systems, such as aircraft or industrial machines, where wear and tear can significantly affect performance. Proper MRO practices help extend the lifespan of these assets.