Why Your AS9100 Supplier Keeps Letting You Down (and how to deal with it)
- Danny Lee
- May 26
- 2 min read
If my supplier is AS9100 certified, why are they still delivering late, with parts that don't meet my requirements?
AS9100 certification tells you that a supplier has a quality management system in place that met the standard's requirements on the day of their last audit.
It does not tell you how that system performs on a Tuesday morning, after a bank holiday, when your order is competing with three others, their skilled inspector called in sick, and the production schedule slipped two weeks ago without anyone flagging it.
Certification is a snapshot. Your supply chain operates in real time.
The Gap Between Certified and Capable
The aerospace industry has spent decades building certification frameworks for good reason, AS9100 raises the bar.
But raising the bar is not the same as guaranteeing performance.
A business can hold a valid certificate by an Accredited Certification Body and still carry chronic weaknesses in schedule adherence, first article inspection rigour, nonconformance escalation, or customer specific requirement flow down.
The certificate reflects the system as audited. What you receive reflects the system as it actually operates day to day.
In many cases, many organisations lack the internal resource or specialist knowledge to audit their own supply chains effectively.
Checking a supplier's certificate is straightforward.
Assessing whether their production controls, traceability disciplines, and delivery management genuinely meet your SLA (or the specific quality requirements written into your contract) is a different undertaking entirely.
What an Independent Audit Actually Looks For
VAELO Aerospace conducts independent supplier audits on behalf of organisations who need to know the truth about what is happening inside their supply chain, not just what the certificate suggests.
Our assessments go beyond clause compliance.
We not only evaluate supplier performance against the requirements of AS9100, but also against your specific contractual and quality requirements, delivery terms, first article obligations, inspection standards, traceability expectations, concession thresholds, retention periods and anything else your business has agreed with that supplier.
That means we look at schedule adherence and production loading, internal nonconformance trends, corrective action effectiveness, key person dependency, goods in and final inspection discipline, and whether your customer specific requirements have genuinely been understood and embedded (or simply signed off on a form that nobody reads).
The difference between those two outcomes is often the difference between a supplier who performs and one who costs you money every quarter.
When Your Team Doesn't Have the Bandwidth
Most procurement and quality teams in small to mid sized aerospace organisations are already stretched.
Adding a structured supplier audit programme (one rigorous enough to be commercially useful) requires time, preparation, specialist knowledge of AS9100, and the ability to make objective assessments without the relationship dynamics that come with being the customer standing in the room.
That is a significant ask of a team already managing daily operational pressure.
This is precisely where VAELO Aerospace provides the most immediate value.
We bring independent eyes, aerospace quality management expertise, and a structured methodology that holds your suppliers accountable not just to a standard, but to the specific commitments they have made to you.
If your suppliers are certified but underperforming, the certificate is not the problem, the operation is. This is the problem VAELO Aerospace solves.
Danny Lee, Director of Operations
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