The Pre-Purchase Inspection: What It Covers and Why It Cannot Be Skipped
Every year, buyers skip or rush a pre-purchase inspection (PPI) to close a deal faster — and every year, some of them discover the real cost of that shortcut after delivery, when there is no leverage left to renegotiate.
What a proper PPI actually covers
A comprehensive pre-purchase inspection is not a walk-around. It typically includes:
- Airframe and engine logbook review — confirming maintenance history matches the aircraft’s actual configuration and hours (see our companion piece on how to read a logbook before you even get to this stage)
- Full avionics functional check — every system powered up and tested, not just visually inspected
- Structural inspection — corrosion, prior damage history, and repair documentation
- Interior condition assessment — cabin systems, upholstery wear, and any undisclosed modifications
- Airworthiness Directive (AD) compliance — confirming every applicable AD has been complied with, and how
These findings also feed directly into total cost of ownership — a maintenance program lapse found during a PPI has a real, quantifiable cost, not just a risk flag.
Why sellers rarely volunteer bad news
A seller’s broker has no financial incentive to encourage a rigorous PPI — a clean, fast closing is what pays their commission. This is exactly the kind of situation where buyer-side representation matters: an advisor with no seller relationship has no reason to smooth over inspection findings.
Who should perform it
The PPI should be conducted by an independent MRO facility of the buyer’s choosing — never one suggested by the seller or their broker. Findings should be documented in writing before any final offer is confirmed.
What happens when findings surface
Most PPIs surface at least minor discrepancies. The question is what happens next: a good-faith seller will either remedy the issue, adjust price, or allow withdrawal without penalty. If a seller resists all three, that itself is useful information — and often the single strongest card in negotiation.
We coordinate PPIs with independent MROs for every acquisition we advise on, and review findings with the buyer before any commitment is finalized — never after. Our free acquisition guide includes the full PPI checklist we use, or request advisory directly.
Want the full process in one document?
Free guide: the 6-stage acquisition process, TCO breakdown, and a PPI checklist.
Frequently Asked Questions
What is a pre-purchase inspection (PPI) on a business jet?
A pre-purchase inspection is an independent technical review of a used aircraft before a sale closes, covering airframe and engine logbooks, avionics functional checks, structural condition, interior condition, and Airworthiness Directive compliance.
Who should perform the pre-purchase inspection?
The PPI should be conducted by an independent MRO facility chosen by the buyer, never one suggested by the seller or the seller's broker, to avoid any conflict of interest in the findings.
What happens if the pre-purchase inspection finds a problem?
A good-faith seller will typically remedy the issue, adjust the price, or allow the buyer to withdraw without penalty. If a seller resists all three options, that itself is useful information about the transaction.
Can I skip the pre-purchase inspection to close faster?
Skipping or rushing a PPI removes your only independent check on the aircraft's true condition before funds change hands, and buyers who skip it are the ones most likely to discover costly issues only after delivery, when there is no negotiating leverage left.