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Make your purchase conditional on an aircraft-specific pre-buy inspection by an independent FAA-certificated airframe and powerplant mechanic (A&P) or an approved repair station. Review the records yourself, compare them with the airplane, and check applicable airworthiness directives (ADs); then use the inspector’s written findings to decide whether to proceed, renegotiate, require work, or walk away.
A pre-buy inspection reduces uncertainty, but it is not a guarantee against future failures or a substitute for checking whether the aircraft fits your mission and budget. Because no aircraft identity or records are specified here, the steps below explain how to evaluate a candidate rather than determine whether any particular airplane is safe or a good purchase.
Who should inspect a used airplane before I buy it?
Hire an FAA-certificated A&P mechanic or an approved repair station to perform the pre-purchase inspection. The FAA’s Buying an Aircraft handbook, Chapter 2, states: “Pre-purchase inspections should be performed by a Federal Aviation Administration (FAA) certificated airframe and powerplant mechanic (A&P) or an approved repair station.” The handbook also recommends completing the inspection before the transaction and considering the buyer’s requirements, typical loading, trip distance, and flight conditions.
Choose for relevant experience and independence
Prefer an inspector familiar with the aircraft’s make and model, including its configuration and maintenance history. That experience helps the mechanic assess the records and physical airplane in context. Independence is also prudent: if you have concerns about relying on the seller’s regular maintenance provider, ask for an inspector who is not responsible for maintaining the aircraft for the seller. The FAA recommendation establishes the type of qualified provider; selecting someone independent is a buyer-protection practice.
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Ask the prospective inspector about their experience with this type, what information they need in advance, and how they will document findings. Confirm that the person or facility is willing to inspect the specific aircraft and explain any limits on the work. A mechanic’s review is important, but the owner/operator retains responsibility for airworthiness and ongoing AD compliance, as the FAA explains in Understanding Owner/Mechanic Roles and Responsibilities.
Agree on scope, access, and payment before the inspection
There is no single checklist that is a mandatory or universal scope for every light aircraft. The right inspection depends on the type, installed equipment, history, visible condition, and the inspector’s judgment. Set expectations in writing before the appointment so you know what the inspection can establish and what may require additional work.
- Records: Clarify which airframe, engine, propeller, and equipment records the inspector will review, and whether they will compare log entries with the aircraft.
- Physical access: Ask what components or areas will be examined and whether panels, fairings, or other items must be removed. Establish who authorizes and pays for access work, reassembly, and any additional inspection that becomes necessary.
- Test flight: Ask whether a test flight is appropriate, permitted, and within the proposed scope. Do not assume one is included or that it can replace examination of records and physical condition.
- Findings: Agree on a written report that identifies the item, why it matters, what further investigation or corrective work may be needed, and—where possible—an estimate from an appropriate professional.
- Transaction terms: Coordinate with the seller on access, scheduling, and how the purchase agreement handles findings and any work required before closing.
Make sure the inspection happens before the transaction is completed. A verbal assurance or a quick look at a clean-looking logbook is not a substitute for an agreed inspection and a considered review of its results.
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Ask the seller for the available maintenance history and identity information early enough for the inspector to review it. Read the logs chronologically rather than looking only at the latest inspection entry. A sequence of entries can reveal patterns or unanswered questions that one isolated entry cannot.
Build a chronology from the logbooks
Look for routine and major maintenance, inspection entries, recurring discrepancies, repairs, modifications, usage trends, and recorded AD compliance. Note dates, descriptions, references to work performed, and whether later entries appear to resolve earlier items. If you cannot interpret a technical entry, mark it for the inspector rather than concluding what it means on your own.
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- Track repeated discrepancies or repairs that appear to recur.
- Identify major repairs and alterations, and ask how their records relate to the aircraft’s current configuration.
- Look for the records documenting AD compliance, while recognizing that an entry needs to be evaluated against the specific directive and aircraft configuration.
- List periods or components for which records appear incomplete, missing, or difficult to reconcile.
Missing records do not, by themselves, prove a defect. They can limit what you can establish about the aircraft’s history, however, and may require additional research or a more detailed inspection before you decide.
Compare the paperwork with the physical aircraft
Confirm that the aircraft identity and the recorded airframe, engine, propeller, and installed equipment/configuration correspond to what is actually present. Compare recorded maintenance and alterations with the airplane, and flag modifications that appear to lack supporting entries. Also ask about records describing work or equipment that is no longer evident on the aircraft.
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Supplement the logbooks with FAA records
FAA aircraft records may include registration documents, bills of sale, major repair or alteration records on Form 337, and Supplemental Type Certificate (STC) information. Search or request records using the aircraft identifiers and reconcile what you find with the logs and the airplane. Registration numbers can change, so make and model and serial information may also matter. The FAA’s Aircraft Registration FAQs explain registration-related records and questions.
Do not assume that one record source contains the complete maintenance history or resolves every discrepancy. Use FAA records as a cross-check and give the inspector any documents that raise questions about identity, repairs, or configuration.
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How do I check airworthiness directives on a used aircraft?
Check ADs for the specific candidate, not just for its airframe model. The review should cover the aircraft, each installed engine and propeller, and applicable installed appliances. An airframe-only search can miss directives that apply to another installed product.
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- Identify the installed products. Record the aircraft make, model, and serial information, plus the models and relevant identifying information for its engine, propeller, and applicable appliances. Reconcile these with the aircraft and records.
- Search the FAA AD resources. Use the FAA’s Airworthiness Directives resource and its AD Applicability and Compliance guidance. Search each relevant product, then have the inspector help determine whether a directive applies to the exact model, series, part number, or modification condition.
- Read the directive’s conditions and instructions. Check the applicability language, required action or operating limitation, effective date, and compliance time. Do not treat a result for a similar model as proof that the directive applies—or does not apply—to the aircraft in front of you.
- Match applicability to compliance records. For each directive that applies, look for an entry documenting the required action and evaluate whether it satisfies the directive’s terms. Ask the inspector to identify missing, unclear, or potentially incomplete evidence.
- Resolve uncertainties before closing. If applicability or compliance cannot be established from the available information, obtain qualified review and determine what additional records or work are needed before relying on the aircraft’s status.
ADs are legally enforceable, and the owner/operator has an ongoing responsibility to comply. A mechanic can assist with the review, but hiring an inspector does not transfer that responsibility from the owner/operator.
What does a pre-buy inspection cover?
The inspection’s purpose is to help you understand the aircraft’s condition, records, configuration, and known discrepancies before purchase. Its precise procedures and access depend on the aircraft and the scope agreed with the inspector. Ask the inspector to distinguish what they examined from what they did not examine, and to identify any limits that affect the conclusions.
Use the inspection and records review together. A physical check can raise questions about an undocumented alteration; a log entry can identify work that needs to be compared with the airplane. Neither a clean-looking airplane nor a complete-looking file alone settles every question. If an area could not be accessed or a record cannot be reconciled, ask what further examination or documentation would resolve the uncertainty.
Request findings grouped by their significance to the decision, rather than as an undifferentiated list:
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- Airworthiness or safety concerns: Items the inspector believes need immediate attention or further investigation before the aircraft is operated or purchased.
- Required compliance or corrective work: AD actions or other repairs that the inspector identifies as necessary, with the basis and evidence explained.
- Deferred maintenance: Work that may not be an immediate airworthiness issue but affects condition, expected near-term expense, or availability.
- Optional improvements: Upgrades or changes that could be useful to you but are not established as necessary corrections.
These categories are a way to organize the discussion, not a substitute for the inspector’s technical judgment. Ask questions about consequences, urgency, evidence, and what follow-up would change the assessment.
Check whether the aircraft fits your mission and budget
A technically acceptable aircraft may still be the wrong purchase if its loading, trip capability, or operating characteristics do not suit the way you plan to use it. Compare your typical passenger and baggage loading, trip distance, and expected flight conditions with the candidate. The FAA handbook recommends considering the buyer’s requirements and typical loading, trip distance, and flight conditions before completing a purchase.
Use aircraft-specific documentation and qualified advice to assess the candidate’s actual configuration and limitations; do not infer payload or trip suitability from a model name or an advertisement. If your intended use depends on carrying particular people or equipment, or making a regular trip, check that use against the aircraft’s documented capabilities and realistic operating conditions.
Also estimate total ownership costs rather than focusing on the asking price. Seek current, model-specific estimates from appropriate professionals for maintenance, insurance, storage, fuel, and likely near-term work. The right figures depend on the candidate, its condition, location, use, and coverage; no general cost figure can determine whether a particular aircraft fits your budget.
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If you are considering more than one airplane, record evidence on the same axes for each rather than letting the asking price dominate the comparison.
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| Decision area | What to compare | What an unresolved issue means |
|---|---|---|
| Mission fit | Typical loading, trip distance, and operating conditions against your intended use. | Verify the aircraft’s documented capabilities and limitations before assuming it can perform the mission. |
| Records | Completeness, chronology, recurring discrepancies, and consistency with the aircraft. | Request additional records or expert review; a gap is not proof of a particular defect. |
| AD and configuration status | Applicability and compliance for the airframe, engines, propellers, and relevant appliances; documented alterations compared with installed equipment. | Resolve uncertain applicability, compliance, or configuration before relying on the aircraft’s status. |
| Inspection findings | Safety concerns, compliance or repair work, deferred maintenance, and optional improvements. | Obtain clarification and written estimates where possible, then account for the work in your decision. |
| Ownership economics | Asking price alongside current estimates for maintenance, insurance, storage, fuel, and likely near-term work. | Get candidate-specific estimates; the purchase price alone does not establish affordability. |
Use the findings to decide whether to proceed
Do not reduce the report to a simple pass/fail label. Ask the inspector what is established, what remains uncertain, what work or further investigation is recommended, and whether an estimate can be provided. Then decide how the findings change the transaction.
- Proceed: The evidence and remaining uncertainties are acceptable to you, the aircraft fits your mission, and your expected ownership costs are workable.
- Renegotiate: Use documented discrepancies and written estimates, where available, as the basis for discussing price or terms. Keep necessary corrective work distinct from optional improvements.
- Require work before completion: If you and the seller agree that specified work must be done, clarify who will perform it, what records will document it, and whether follow-up inspection is needed.
- Pause for more information: If records, AD applicability, configuration, access, or findings remain unresolved, obtain the missing evidence or further qualified review before making a commitment.
- Walk away: If the unresolved risks, work, mission mismatch, or expected expense exceed what you are willing to accept, do not let time spent or the asking price alone force a purchase.
Keep the purchase conditional on completing the agreed inspection and reviewing its written results before the transaction is completed. Do not treat a seller’s assurance, a registration record, or a clean-looking logbook as an independent determination that the aircraft is airworthy or appropriate for your use.
What a pre-buy cannot establish on its own
An inspection is a point-in-time assessment within an agreed scope. It cannot guarantee that a component will not fail later, and it does not remove the need for your own records review, mission analysis, or ongoing owner/operator responsibilities. Findings may also be limited when records are missing, a relevant area cannot be accessed, or the aircraft’s identity or configuration is not clear.
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Without the aircraft’s registration, make, model, serial number, records, seller disclosures, and inspection report, no one can determine its specific ADs, structural or corrosion concerns, engine condition, legal title or lien status, present market value, repair costs, or whether it is a sound purchase. Those questions require aircraft-specific records and qualified assessment rather than a general guide.
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