How Damage History and Maintenance Records Affect Aircraft Value When You Sell or Refinance
This guide is for current owners and sellers: how your aircraft's records and any damage history show up in its sale price and in your ability to refinance, and what to document now so they don't cost you later.
Why records and damage history change your sale price
Two effects stack. The first is the value adjustment an appraiser or value guide applies for damage history, unverifiable engine time or undocumented equipment. The second is quieter but often larger: your buyer's financing. AOPA Aviation Finance notes that some lenders will only finance up to 70% or 75% for an older aircraft, one with damage history, or one with incomplete logbooks (AOPA, Oct 2024). Every point of LTV the buyer loses is cash they have to find.
| Your aircraft | Buyer's max LTV | Buyer's loan | Buyer's cash at closing |
|---|---|---|---|
| Clean records, no damage history | 85% | $153,000 | $27,000 |
| Documented damage history or incomplete logs | 75% | $135,000 | $45,000 |
| Lender caps at 70% | 70% | $126,000 | $54,000 |
At the same price, the buyer of the aircraft with a damage file or gaps needs $18,000 more cash than the buyer of the clean one, and $27,000 more if their lender caps at 70%. Some buyers can't bring that; the rest will ask for a lower price to compensate. Either way it shows up as time on the market or as a discount. That is why the value hit from records problems is often bigger than a guide's damage deduction alone.
How damage history changes value
"Damage history" covers everything from a hangar-rash wingtip to a rebuilt wing. Buyers and appraisers weigh five things:
- Severity. The NTSB definition in 49 CFR 830.2 is the common yardstick. Substantial damage adversely affects structural strength, performance or flight characteristics and would normally need major repair or replacement of the affected component. Damage limited to the landing gear, flaps, wingtips, propeller blades, bent fairings or cowling, dented skin or small punctures doesn't count as substantial on its own.
- Repair quality and data. A repair using the manufacturer's structural repair data or new factory components, done by a shop that knows the type, is worth more than a field repair with thin documentation.
- Documentation. Logbook entries, 337s for major repairs, the shop's work order, parts invoices and photos. An undocumented repair is usually discounted more than a documented one of the same size, because the buyer has to assume the worst.
- Time and hours since. A repair followed by years of uneventful flying and clean annuals has proven itself. A repair finished last month hasn't.
- Disclosure. A seller who lists the damage with the repair file up front is selling a known quantity. One whose buyer finds it at pre-buy often loses the deal outright.
| Event | Likely in NTSB records? | What drives the value effect | What to keep in the file |
|---|---|---|---|
| Hangar rash, dented skin, wingtip | Usually not | Small unless structure was involved | Log entry, invoice, photos |
| Prop strike (taxi, ground object) | Often not | Whether the engine got the manufacturer's recommended inspection | Prop and engine entries, teardown report, 8130-3 tags |
| Gear-up or gear collapse | Depends on the damage | Belly structure involvement, prop strike follow-up, repair data | 337s, work order, engine inspection, before/after photos |
| Substantial structural damage | Yes, if reportable | Repair data, what was replaced, repair facility | Everything above, plus the insurer's adjuster report |
| Hail, flood, hangar collapse | Usually not | Extent of skin and interior replacement, corrosion follow-up | Insurance claim file, repair records, later corrosion checks |
Refinancing with damage history: a worked example
The same lender limits apply when you refinance, and a refinance has no purchase price to lean on, so the valuation decides the loan. Suppose you owe $150,000 on an aircraft worth $190,000 with clean history. For comparison, assume a documented repair leads the appraiser to take 10% off (an illustrative assumption, not a standard) and the new lender caps that file at 75% LTV.
| History | Appraised value | Max LTV | Max new loan | Result |
|---|---|---|---|---|
| Clean history | $190,000 | 85% | $161,500 | Refinances, with $11,500 of room |
| Documented damage history | $171,000 | 75% | $128,250 | Pay down $21,750 to refinance |
The damage history doesn't just trim the value; it changes whether the refinance works without bringing cash. Owners who expect to refinance when rates move should treat the repair file as part of the loan file. For the refinance process itself, see refinancing your aircraft loan, or run your numbers in the refinance calculator.
Thinking about refinancing or selling?
A financing specialist can tell you how lenders in our network are likely to treat your aircraft's history before you pay for an appraisal.
What to document during ownership to protect value
Most of what a future buyer, appraiser or lender will want is created during your ownership. Keeping it costs almost nothing at the time and is expensive or impossible to recreate later.
| Keep | Why it matters later |
|---|---|
| Shop work orders behind every logbook entry | Entries summarize; work orders prove what was inspected and replaced |
| Engine overhaul invoice and parts list | Lets the appraiser credit the overhaul fully (new versus reused parts, shop name) |
| 8130-3 tags and release paperwork | Supports "overhauled" claims for mags, props, governors and accessories |
| AD compliance record, updated every annual | A dated, signed current list removes a common closing delay |
| 337s, STC paperwork, flight manual supplements, weight and balance | Equipment only gets value credit when its installation is documented |
| Compression readings, oil analysis and borescope images | A trend over several years makes a mid-time engine easier to trust |
| FAA Public ADS-B Performance Report after avionics work | Shows the ADS-B Out installation performs, which buyers' mechanics check |
| A complete damage file for any incident | Turns a scary history into a documented, priced one |
| Storage and preservation entries if it sits | Answers the "why so few hours?" question before it's asked |
| Scanned logbooks stored off-site | Lost original logs are the most expensive records event there is |
If your aircraft already has damage history
- Build the file now. Collect the repair entries, 337s, work orders, parts invoices, photos and, if there was a claim, the adjuster's report. Order the FAA aircraft records file to confirm the 337s are on record.
- Have the repair looked at deliberately. At the next annual, ask your IA to inspect the repaired area specifically and note the result in the entry. A recent clean inspection of an old repair is persuasive.
- Disclose it in the listing. Serious buyers will run the NTSB and FAA searches anyway, and a buyer who finds it at pre-buy has already spent money and trust.
- Price for the buyer's financing. Assume your buyer's lender may cap the loan at 70–75% and set expectations accordingly. The first table on this page shows what that means in cash.
- Get legal review of your representations. Purchase agreements commonly include seller statements about damage history. Confirm the wording with an aviation attorney.
Which pre-sale work pays back?
The work that reliably pays is the work that removes doubt: close open squawks, bring ADs current with a dated compliance list, make sure everything on the equipment list works, and organize the records so a buyer can review them in an afternoon. A fresh annual is often negotiated as part of the sale anyway. Large discretionary projects, such as an engine overhaul, paint or a panel, add value but rarely return their full cost at sale, and buyers often want to choose the shop and the equipment themselves. If you are unsure, compare the cost of the work with how the buyer's appraiser would adjust for it; how to value a used airplane shows the adjustment method.
How this guide differs from related guides
This page takes the owner's and seller's view. For how a buyer reads the records, see how to read aircraft logbooks. For exactly what lenders and appraisers request, and how missing logs reduce loan-to-value on a purchase, see missing logbooks and your aircraft loan. For pricing an aircraft from comparables, see how to value a used airplane, and for the lender's appraisal, aircraft appraisals for a loan.
General information, not appraisal, tax or legal advice. Valuations depend on the specific aircraft; confirm disclosure obligations with an aviation attorney.
Frequently asked questions
How much does damage history reduce an aircraft value?
There is no fixed percentage. The deduction depends on what was damaged, whether it met the NTSB definition of substantial damage, the quality of the repair and the data it used, how completely it is documented, and how many hours the aircraft has flown since. Value guides and appraisers apply a damage-history adjustment, and many buyers discount further. Documentation is the part an owner controls.
Does a gear-up landing always show up in the NTSB database?
Not necessarily. Under 49 CFR 830.2, damage limited to items such as landing gear, flaps, propeller blades, dented skin or small punctures is not by itself substantial damage, so some gear-up landings are never reported as accidents. That does not make them invisible: the repair entries, prop and engine inspection records and 337s tell the story, and buyers will ask.
Should I disclose damage history when selling my airplane?
Yes. Buyers will search the NTSB and FAA databases, their pre-buy mechanic will look for repairs, and their lender will ask for the repair entries. Disclosing early, with a complete repair file, keeps the deal from collapsing at inspection. Purchase agreements commonly include seller representations about damage history, so have an aviation attorney review what you sign.
What records should I keep to protect my aircraft resale value?
Keep every logbook entry with its shop work order, overhaul invoices and parts lists, 8130-3 tags for overhauled components, AD compliance records updated at each annual, 337s and STC paperwork, oil analysis and compression trends, borescope images, and a complete file for any damage repair. Scan the logbooks and store the copies away from the aircraft.
Can damage history stop me from refinancing my aircraft?
It can make a refinance smaller. AOPA Aviation Finance notes some lenders will only finance up to 70% or 75% of value for an aircraft with damage history or incomplete logbooks. If your balance is above that limit on the appraised value, you would need to pay the loan down to refinance, which is why a documented repair file matters to owners who plan to refinance later.
Is it worth overhauling the engine before selling?
Usually not purely for resale. An overhaul adds value, but sellers rarely recover the full cost, and buyers often prefer to choose their own shop. Items that more reliably pay back are the low-cost ones that remove buyer doubt: closing open squawks, bringing ADs current, organizing the records, and fixing anything that would make the aircraft fail a pre-buy.