Diligence
Damage History in Aircraft Records: How to Find It
To investigate aircraft damage history, read the airframe, engine and propeller records together, request the supporting repair documents, and compare the findings with appropriate public records and a physical inspection. A clean database search or an absence of damage-related wording in the supplied logs does not establish that the aircraft has never been damaged.
The useful result is an event-by-event history: what is documented, how it was addressed and what the next reviewer still needs to examine.
Search for the work, not only the word “damage”
Maintenance entries often describe tasks rather than narrate the event that led to them. Search terms can help locate candidate entries, but read the surrounding pages before classifying a result. See how to read aircraft maintenance logbooks for the structure of a maintenance entry.
| Entry or term | What to investigate | What not to assume |
|---|---|---|
| Skin, spar or structural repair | Area affected, repair scope and supporting data | That every skin replacement followed an accident |
| Propeller strike or sudden stoppage | Related engine and propeller inspection and work records | That a replacement propeller alone proves a strike |
| Landing-gear repair | Original discrepancy, associated airframe work and release | That routine gear servicing means a gear-up landing |
| Control-surface replacement | Reason for replacement and installation documentation | That replacement establishes structural damage elsewhere |
| Composite repair | Damage assessment, repair data and relevant inspections | That paint work establishes a structural repair |
| Corrosion treatment | Location, extent and any material removal or repair | That all corrosion entries describe the same severity |
Keep factual descriptions separate from interpretation. “Left wing skin replaced” may be supported. “Major landing accident” needs evidence of the event, not an inference from a parts list.
Build one file for each event
For a significant repair, gather the logbook entries, referenced shop work order, applicable repair documentation and the record of approval for return to service. Include available photographs, inspection reports and subsequent follow-up records. Model-specific examples appear in the Bonanza and Piper M600 guides.
Your event sheet should answer:
- When was the event or discrepancy documented?
- Which aircraft area or component was affected?
- What reason for the work is actually stated?
- What repair, replacement or inspection was performed?
- Which technical data and supporting documents are referenced?
- What approval and subsequent findings are documented?
A source may establish the work date without establishing the event date. Keep those separate. Likewise, the person who signed the return-to-service entry may not be the person who first identified the discrepancy.
Read Form 337 correctly
FAA Form 337 is titled Major Repair and Alteration. A form may concern an equipment upgrade or other alteration rather than damage. Read the work description and any attachments before describing its significance. FAA Form 337 information
The absence of a Form 337 is not, by itself, proof that no major repair occurred. Part 43 Appendix B includes specific alternative recording provisions, including a repair-station process for certain major repairs. The applicable documentation depends on the work and how it was performed. 14 CFR Part 43, Appendix B
For the reviewing shop, the question is whether the appropriate record package supports the actual repair. For the buyer, it is whether the event and its significance are understood before acceptance.
Use public records as an additional source
The FAA provides a process to request aircraft records. Use the aircraft identity carefully, including its serial number where appropriate, and reconcile the resulting documents with the owner-supplied package. FAA aircraft records request
The NTSB database covers civil aviation accidents and selected incidents from 1962 onward within its stated scope, with certain foreign investigations also included. It is not a complete catalog of every repair, ground-handling event or occurrence worldwide. A search with no result therefore cannot support a universal “no damage history” claim. NTSB Aviation Investigation Search
Check the identity behind any match. Tail numbers can change; a similar registration or model is insufficient to attribute an event to the aircraft under review. Use available serial-number and registration-history evidence to resolve uncertainty.
Evaluate the documented repair without overstating it
A detailed package can make a historical event easier to assess. It may identify the original condition, the repair method and the subsequent inspections clearly. That is useful evidence of how the event was addressed.
It does not justify saying every repair is immaterial, nor does the word “damage” determine the aircraft's current condition or market value on its own. The inspection provider evaluates the aircraft and relevant technical documentation. An appraiser or transaction adviser can address the market question using the particular aircraft and event. For how documented history relates to price, see how documented maintenance supports aircraft value.
Give the pre-buy shop the event file before the inspection. Ask it to identify the affected area in the scope, reconcile the records with the installed configuration and explain any unresolved findings in writing. See what to look for in aircraft logbooks before you buy for how to turn these findings into a shop brief.
Write a conclusion another reader can trust
Use language that matches the evidence:
- Documented event: “The June 2019 entry describes a propeller strike and references an engine inspection work order.”
- Repair documented, cause unclear: “The supplied entry records replacement of the left elevator; the reason for replacement is not stated.”
- Missing support: “The repair entry references an attachment that was not included in the supplied package.”
- No relevant entry identified: “No damage-related or major structural-repair entries were identified in the supplied records covering 2015–2025.”
These are wording examples, not findings about an actual aircraft. The final statement deliberately identifies the reviewed period. It should not be shortened to “no damage history.”
PlaneFacts presents significant documented events alongside their repairs and supporting sources. That gives the person reading the report a clearer starting point for diligence while keeping unresolved questions visible.
Common questions
Does a Form 337 mean an aircraft had an accident?
No. It can document a major alteration as well as a major repair. Its work description and attachments establish what it concerns.
Can damage history be found from a tail number alone?
Public searches can provide leads. A fuller review requires the correct aircraft identity, owner-supplied maintenance records and examination of the aircraft. No single search establishes a complete history.
Is a repaired aircraft automatically a poor purchase?
That conclusion requires more than the existence of a repair. Understand the event, the documentation, current condition and the transaction implications with the appropriate professionals.
Frequently asked questions
Does a Form 337 mean an aircraft had an accident?
No. It can document a major alteration as well as a major repair. Its work description and attachments establish what it concerns.
Can damage history be found from a tail number alone?
Public searches can provide leads. A fuller review requires the correct aircraft identity, owner-supplied maintenance records and examination of the aircraft. No single search establishes a complete history.
Is a repaired aircraft automatically a poor purchase?
That conclusion requires more than the existence of a repair. Understand the event, the documentation, current condition and the transaction implications with the appropriate professionals.
PlaneFacts reports support diligence. They do not establish current airworthiness or replace an aircraft inspection or a qualified maintenance review.