Back to Knowledge Hub
Audit Readiness 7 min read September 12, 2026

Aerospace Prime Supplier Quality Requirements: AS9100D NCR and CAPA Documentation Audits

What aerospace and defence prime contractor supplier quality teams actually check during vendor audits — and the exact AS9100D NCR and CAPA records you must have ready.

Aerospace Prime Supplier Quality Audits: What They Are Really Checking

Major aerospace and defence prime contractors operate among the most rigorous supplier quality assessment programmes in the industry. Vendors supplying machined components, sub-assemblies, or special process services are subject to:

•
**Initial Vendor Qualification Audit** — before receiving first purchase orders
•
**Annual Surveillance Audit** — reviewing your QMS implementation and current NCR/CAPA status
•
**Source Inspection** — customer quality representatives physically at your aerospace facility floor reviewing specific batches
•
**Corrective Action Requests (CARs)** — formal customer-issued corrective actions requiring documented response and verification

The 8 Things Prime Contractor Quality Teams Check on Every Audit

1. Your NCR Register Currency

Is every known nonconformance logged? Auditors cross-reference your production travellers with your NCR register and flag unlogged discrepancies as evidence of an inadequate identification system.

2. Customer NCR Cross-Reference Completeness

Every customer-issued discrepancy or nonconformance reference number issued to your aerospace facility must be traceable in your internal register. Missing cross-references are a direct major finding.

3. Containment Timeliness

The containment action must be documented within 24–48 hours of detection. An NCR opened on Monday with containment recorded on Friday raises immediate questions about uncontrolled nonconforming product release.

4. MRB Disposition Completeness

Every NCR requires a formal MRB disposition. An NCR sitting at "Open" status for more than 14 days without a disposition decision is a finding.

5. Engineering Design Authority Sign-offs

For Use As-Is and Repair dispositions: who authorised? What is their designation? Is the sign-off dated? Verbal authorisations are not compliant.

6. Customer Concession Traceability

If the prime customer issued a formal concession (waiver) number for a Use As-Is disposition on their drawing, that concession reference (e.g., PRIME-CONC-2026-0044) must appear in your NCR record.

7. CAPA Root Cause Documentation

Root cause must be specific and supported by data — not "operator was retrained." Human factors must be evaluated per AS9100D Clause 10.2.

8. Verification of Effectiveness with Objective Evidence

This is the single most common finding at sub-tier suppliers. The CAPA cannot be closed without a documented effectiveness check against subsequent production lots — signed by the Quality Manager with dates of inspection.


How to Prepare Your Shop for a Prime Customer Audit in 48 Hours

If you receive an audit notification with short lead time:

1. Run a status check on all open NCRs — close or disposition anything older than 30 days

2. Verify all Use As-Is dispositions have engineering sign-off attached

3. Confirm all open CAPAs have documented root causes and verification evidence

4. Generate a current NCR register extract with status column

5. Prepare a CAPA aging report showing no NCRs older than 90 days without a closed CAPA

With POVRIS, steps 1 through 5 take less than 5 minutes. Without purpose-built software, this process consumes 2–3 working days of manual spreadsheet and email hunting.

Download the POVRIS Aerospace Supplier Audit Readiness Pack — 15-point NCR checklist + CAPA template.Includes Excel sheet, CSV mapping, and Clause 8.7 / 10.2 registrar checklist.
Get Free Toolkit