Private Pilot Private Exam

Which operation is typically categorized as preventive maintenance?

1. Servicing landing gear wheel bearings

2. Installing a new avionics system

3. Overhauling an engine

4. Replacing the flight control cables

The correct answer is: Servicing landing gear wheel bearings

Preventive maintenance refers to routine tasks that are performed to help ensure the proper functioning and longevity of an aircraft, typically focusing on minor repairs or maintenance procedures that do not significantly impact the airworthiness of the aircraft. Servicing landing gear wheel bearings fits within this category as it involves routine checks and lubrication to avoid wear and tear, thus preventing potential failures and enhancing performance. In contrast, installing a new avionics system and overhauling an engine are more complex operations that generally require specialized certification and are beyond the scope of preventive maintenance. Similarly, replacing flight control cables is a significant repair that directly relates to aircraft safety and functionality. These activities are typically classified under more extensive maintenance procedures rather than preventive measures.