Buying a small general aviation aircraft is a big investment, and a thorough pre-purchase inspection is one of the most important steps in protecting it. This inspection goes far beyond a standard annual—it’s a deep dive into the aircraft’s true condition, history, and potential future costs.

Airframe Condition
Inspectors carefully examine the airframe for signs of corrosion, damage, or previous repairs. This includes checking the fuselage, wings, control surfaces, and landing gear. Even minor corrosion or poorly documented repairs can become expensive problems later.

Engine Health
The engine is one of the most costly components, so its condition is critical. Inspectors review engine logs, time since overhaul (TSOH), and look for leaks, abnormal wear, or signs of poor maintenance. Compression tests and oil analysis may also be performed to assess internal health.

Logbooks and Documentation
Complete and accurate records are essential. Inspectors verify maintenance logs, AD (Airworthiness Directive) compliance, and STCs (Supplemental Type Certificates). Missing or inconsistent records can significantly impact both safety and resale value.

Avionics and Electrical Systems
Modern avionics can be expensive to repair or upgrade. Inspectors check that radios, GPS units, autopilot systems, and electrical components function properly. Outdated avionics may not be a dealbreaker, but they factor into the aircraft’s value.

Control Systems and Flight Surfaces
Cables, pulleys, and linkages are inspected for wear, proper tension, and smooth operation. Any stiffness or irregularity in movement could indicate hidden issues.

Fuel System
Inspectors look for contamination, leaks, and proper fuel flow. Fuel tanks, lines, and selectors must all be in good working order to ensure reliability and safety.

Interior and General Condition
While cosmetic issues aren’t safety-critical, they still matter. Seat condition, upholstery, panel layout, and overall cleanliness can give insight into how well the aircraft has been cared for.

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A pre-purchase inspection isn’t just about finding problems—it’s about understanding the true cost of ownership. Spending a little more upfront on a detailed inspection can save you from major surprises down the line.