100 Hour Inspection Checklist

1. Engine Oil and Filter:

• Check oil levels and quality.
• Inspect the oil filter for any signs of contamination or damage.
• Replace the oil and filter if necessary to ensure proper lubrication of the engine.

2. Spark Plugs:

• Remove and inspect each spark plug for signs of wear or fouling.
• Clean or replace spark plugs as needed to maintain optimal engine performance.

3. Air Filter:

• Examine the air filter for dirt, debris, or blockages.
• Clean or replace the air filter to ensure proper airflow to the engine.

4. Fuel System:

• Inspect fuel lines, hoses, and connections for leaks or damage.
• Check fuel filters for clogs or excessive contamination. Ensure proper fuel flow and pressure to the engine.

5. Ignition System:

• Verify the functionality of ignition components, such as magnetos or electronic ignition systems.
• Check ignition timing and adjust if necessary.

6. Control Systems:

• Inspect control cables, rods, and linkages for proper tension and secure attachments.
• Lubricate control mechanisms as recommended by the aircraft manufacturer.

7. Landing Gear:

• Examine the landing gear components for wear, cracks, or signs of damage.
• Ensure proper operation of the landing gear system, including gear extension and retraction.

8. Propeller:

• Check the propeller blades for nicks, cracks, or other damage.
• Verify the proper operation of the propeller control system.

9. Electrical System:

• Inspect wiring, connectors, and electrical components for any signs of wear or deterioration.
• Test the functionality of lights, instruments, and avionics.

10. Structural Inspection:

• Conduct a visual inspection of the aircraft's structure for any signs of corrosion, dents, or structural damage.
• Pay close attention to critical areas like wing attach points, fuselage joints, and control surface hinges.