Counterfeit Parts Prevention under IA9100

Counterfeit and suspect unapproved parts are a serious safety and business risk in aviation, space and defence. AS9100D made counterfeit parts prevention an explicit expectation, and it is expected to remain an important theme in IA9100, IA9110 and IA9120.

This page is Paradygm Consulting's original commentary. It is not the text of the standard. Check the published IA9100 and any customer or regulatory requirements for the exact obligations that apply to you.

What counts as a counterfeit part?

In plain terms, a counterfeit part is one that has been misrepresented — copied, altered, re-marked or passed off as genuine without authority. A suspect part is one where there is reason to doubt its authenticity or approval status but this has not yet been confirmed. Both need controlled handling.

Where the risk comes from

• Purchasing from unauthorized or unverified sources, especially for obsolete or hard-to-find items.
• Pressure to meet delivery dates when authorized supply is constrained.
• Weak traceability or incomplete documentation.
• Returns, surplus and salvaged material re-entering the supply chain.
• Limited awareness among receiving, stores and purchasing staff.

Building a practical prevention programme

1. Sourcing controls

Prefer original manufacturers and their authorized distributors. When you must use other sources, define the extra risk assessment, approval and verification required, and who can authorize it.

2. Supplier requirements and flow-down

Make counterfeit prevention expectations part of your purchase order terms and supplier requirements, and make sure they flow down to sub-tier suppliers.

3. Verification and traceability

Define what documentation you need at receipt (for example, certificates of conformance and traceability back to the original manufacturer) and when additional inspection or testing is warranted, based on risk.

4. Quarantine and control

Have a clear process to segregate suspect material so it cannot be used or shipped, and to prevent counterfeit items from re-entering the supply chain.

5. Reporting

Know your obligations to notify customers, authorities and industry reporting systems where applicable, and decide in advance who is responsible.

6. Training and awareness

Train purchasing, receiving, inspection, stores and engineering staff to recognize warning signs and to escalate concerns without fear of blame.

7. Monitoring and improvement

Track suspect part events, supplier performance and near-misses. Use the data in management review and corrective action.

Notes for MRO and distributors

Maintenance organizations face additional risk from parts removed from service and from documentation gaps; see the IA9110 brief. Distributors handle large volumes of parts from many sources, so traceability and source approval are central; see the IA9120 brief.

Questions for your gap assessment

• Is there a documented, risk-based approach to sourcing from non-authorized sources?
• Do purchase orders flow down counterfeit prevention requirements?
• Can we trace a sample of parts back to the original manufacturer?
• Has suspect material ever been found, and was it handled correctly?
• When did key staff last receive awareness training?

How we can help

We review counterfeit parts controls as part of our IA9100 gap assessment and can include awareness sessions in team training. Related: key changes, operational planning, clause-by-clause deep dive.

Call 1-855-702-9001, email [email protected], or use the contact section (privacy notice).

Estimated timeline: publication late 2026, audits from about January 2027, transition through about 2029. Estimates may change — confirm with the IAQG and your CB.