Which activities are included in Maintenance?

• A. Inspection, overhaul, repair, preservation, and replacement of parts
• B. Preventative maintenance
• C. Cosmetic cleaning only
• D. Routine lubrication only

Answer: (A)

Maintenance covers a broad set of actions to keep an aircraft airworthy. It includes inspecting for wear or damage, overhauling systems or components when needed, repairing or replacing defective parts, preserving parts to prevent deterioration, and replacing components to restore or maintain serviceability. This full range is why the complete list is correct: it explicitly names the key activities that maintain airworthiness. Preventive maintenance is a form of maintenance, but listing only that single activity doesn’t capture the full scope; cosmetic cleaning alone does not ensure airworthiness; routine lubrication is just one routine task and does not convey the entire set of maintenance actions.