What Constitutes a Good Pre-Buy Inspection?
When purchasing an aircraft, you’re not just buying a machine—you’re investing in a complex asset with a history, potential hidden issues, and long-term operating costs. That’s why a thorough pre-buy inspection is one of the most critical steps in the aircraft acquisition process.
But not all inspections are created equal. So, what truly constitutes a good pre-buy inspection? At Clipper Aviation Maintenance, we believe it’s a combination of experience, transparency, and a methodical approach tailored to the aircraft type and its operating history.
What Is a Pre-Buy Inspection?
A pre-buy inspection is a comprehensive evaluation of an aircraft before purchase. It’s your chance to uncover mechanical, cosmetic, or regulatory concerns that could affect the aircraft’s value or airworthiness. Think of it like a home inspection—except this house flies at 10,000 feet and carries your safety in every component.
What Makes a Pre-Buy Inspection “Good”?
Here’s what we believe separates a solid inspection from a superficial one:
1. Clear Scope Agreed in Advance
A good inspection begins with clarity between buyer and inspector. Scope may vary depending on aircraft age, model, and maintenance history, but should typically include:
- Review of logbooks and records
- Airworthiness Directives (AD) compliance
- Past damage or corrosion reports
- Life-limited parts and component status
Establishing the inspection depth up front prevents surprises and ensures a fair evaluation for both buyer and seller.
2. Experienced, Type-Specific Technicians
Not all A&P mechanics are the same. A good pre-buy should be performed by technicians with specific experience in the aircraft type—they’ll know common problem areas, manufacturer quirks, and aging trends.
At Clipper Aviation, we specialize in a range of aircraft including Cirrus, Piper, Cessna, and King Air, so we tailor our inspection approach accordingly.
3. Logbook Review and Maintenance History
A thorough pre-buy includes a detailed review of maintenance records:
- Has the aircraft been maintained according to the manufacturer’s recommendations?
- Are there any gaps in the inspection cycles?
- Has it been operated Part 91 or in a more rigorous environment like Part 135?
Incomplete or inconsistent logbooks can be a red flag and may affect resale or financing value.
4. AD and SB Compliance
A good pre-buy confirms that all Airworthiness Directives (ADs) and Service Bulletins (SBs) have been complied with. If not, they must be addressed before the aircraft can be legally flown or sold.
5. Physical and Functional Inspections
A high-quality pre-buy includes:
- Open-up inspections (engine, airframe, interior, avionics access)
- Compression tests
- Corrosion checks
- Flight control checks
- Avionics functionality
- Engine run-up or test flight if agreed upon
We don’t just kick the tires—we get under the panels.
6. Full Transparency & Written Findings
After the inspection, a good maintenance provider delivers a clear written report outlining:
- Airworthiness concerns
- Non-airworthy issues that may affect value or future maintenance
- Cost estimates for deferred items
This helps the buyer negotiate from an informed position.
Bonus Tip: Involve the Right Partners
We always recommend including your insurance provider, lender, and a trusted maintenance shop in the discussion. Sometimes, it’s also worth coordinating with a Title & Escrow company to ensure no surprises with liens or past ownership.
Thinking of Buying an Aircraft?
A good pre-buy inspection can save you thousands in future maintenance, give you peace of mind, and help you make a confident, informed decision.
At Clipper Aviation, we offer pre-buy inspection services that are transparent, detail-oriented, and tailored to your mission. We’re not here to sell you an aircraft—we’re here to protect your investment.
👉 Contact our maintenance team to schedule a pre-buy inspection or ask questions before you commit to your next aircraft.