What type of maintenance includes planned or programmed operations?

Scheduled maintenance refers to the type of maintenance that is organized and based on a predetermined timeline, ensuring that operations occur at regular intervals. This approach is crucial in aviation and aircraft systems management because it allows for proactive measures to be taken to maintain the equipment's performance and reliability.

Scheduled maintenance typically includes various planned or programmed operations, such as inspections, replacements, and upgrades that need to be performed according to a defined schedule, which is influenced by factors such as manufacturer recommendations, usage, and regulatory requirements. By adhering to this schedule, potential issues can be identified and addressed before they lead to equipment failure or safety hazards.

In contrast, other types of maintenance, such as preventive maintenance, focuses more broadly on practices intended to prevent breakdowns without necessarily following a strict schedule. Unscheduled maintenance occurs as a response to unforeseen failures or breakdowns that demand immediate attention. On-equipment maintenance can involve repairs carried out on machinery in its installed location, without necessarily aligning with planned operations. Each of these approaches has its roles within the broader maintenance strategy, but scheduled maintenance is specifically designed around planned timelines.