An annual inspection on a small single-engine aircraft is a complex process that should be performed by a certified aircraft mechanic. This information is for educational purposes only and should **not** be used to perform an annual inspection. Improper maintenance can lead to catastrophic failure and death.

The following steps provide a general overview, but the specific tasks and their order will vary depending on the aircraft type and its maintenance history. Refer to the aircraft's maintenance manual (MM) and applicable regulations (like Part 43 of the FAA regulations in the US) for detailed instructions and required documentation.

Preparation:

Review Aircraft Records: Examine the aircraft logbooks, maintenance records, and any service bulletins applicable to the aircraft. This will help identify any recurring issues or specific areas needing attention.

Gather Necessary Tools and Parts: Assemble all necessary tools, inspection equipment, and any replacement parts identified during the records review.

Prepare the Aircraft: Secure the aircraft in a safe and well-lit area. Disconnect the battery (or follow manufacturer's recommendations for battery disconnect). Ensure adequate ventilation.

External Inspection:

Airframe: Inspect the fuselage, wings, control surfaces (ailerons, elevators, rudder), empennage, and landing gear for any damage, corrosion, dents, cracks, or loose rivets. Check for proper gap and alignment of control surfaces.

Exterior Surfaces: Check for paint damage, de-lamination, and corrosion.

Landing Gear: Inspect tires, brakes, shock absorbers, and linkages for wear, damage, or leaks. Check for proper operation and free movement.

Engine Compartment (External): Inspect for leaks, damage, corrosion, and proper securing of components.

Propulsion System (External): Inspect the propeller for nicks, damage, and balance. Check for proper blade tracking and pitch.

Internal Inspection: Cockpit and Cabin: Inspect for damage, wear, and proper operation of instruments, controls, and safety equipment (seats, seat belts, fire extinguishers).

Engine Compartment (Internal): Detailed inspection of the engine, including cylinders, valves, ignition system, carburetor/fuel injection system, oil system, and exhaust system. Check for leaks, corrosion, cracks, and wear.

Fuel System: Inspect fuel tanks, lines, pumps, filters, and gauges for leaks, corrosion, and proper operation.

Electrical System: Inspect wiring, battery, alternator, starter, and other electrical components for damage, corrosion, and proper connections.

Hydraulic System (if applicable): Inspect lines, pumps, reservoirs, and actuators for leaks and proper operation.

Flight Controls: Inspect control cables, pulleys, and linkages for proper tension, free movement, and wear.

Functional Tests:

Engine Run-up: Perform a run-up to check engine performance, oil pressure, and other critical parameters. This must be done in a safe and controlled environment.

Flight Controls: Check the responsiveness and effectiveness of the flight controls.

Instruments: Verify that all instruments are functioning correctly.

Flaps and Slats (if applicable): Check their operation and extension/retraction.

Landing Gear (if applicable): Check retraction and extension.

Documentation:

Meticulously document all findings, repairs, and replacements in the aircraft logbooks. This documentation is crucial for maintaining the aircraft's airworthiness.

Completion:

Reassembly: Reassemble any components that were removed during the inspection.

Final Checks: Conduct a thorough final check of all systems and components.

Test Flight (by qualified pilot): A test flight is typically required to confirm the aircraft's airworthiness following the annual inspection.

Disclaimer: This is a simplified overview. The annual inspection is a highly specialized task requiring extensive training and experience. Only a certified aircraft mechanic should perform an annual inspection. Improper maintenance can compromise the safety of the aircraft and its occupants. Always consult the aircraft's maintenance manual and applicable regulations.