1. Relying solely on the listed price
A price 20 to 30% below market is almost never a good deal: it's the most common sign of a hidden problem (engine nearing its limit, corrosion, incomplete file). Always compare the listing against several comparable aircraft (same type, year, total hours) before getting excited about a low price.
2. Not cross-checking the logbooks
The airframe logbook, engine logbook and propeller logbook must tell the same story. A number of hours that doesn't match between logbooks, or a gap of several months without explanation, should always be questioned before going any further.
3. Skipping the independent inspection
Many buyers in a hurry settle for a report provided by the seller or a quick walk-around. This is the costliest mistake: only a pre-purchase inspection carried out by your own licensed mechanic, independent from the seller, truly protects your investment.
4. Ignoring the incident history
An aircraft that has been through an accident or a major incident can be perfectly repaired and safe, but this must be documented and factored into the price. Always ask whether the aircraft has been the subject of an insurance claim for structural damage.
5. Underestimating the refurbishment budget
Between an upcoming engine overhaul, paint, avionics upgrades or tires to replace, the real budget often exceeds the advertised purchase price. Draw up a costed list of everything that will need to be done within 12 months before committing.
6. Not vetting the seller
A private seller in a rush to sell, a professional with no verifiable business address, or an intermediary who refuses any direct contact with the actual owner are all signals to take seriously. Favor platforms that verify sellers' identity.
7. Signing without a technical contingency clause
Never pay a non-refundable deposit before receiving the inspection results. A serious sale agreement should always include a "subject to satisfactory inspection" clause, with a full refund in case of a documented major defect.