In most aerospace quality workflows, Quality owns the authority to close a nonconformance report, but Quality does not own every action required to get it closed. NCR closure usually requires evidence that containment, disposition, correction, verification, traceability updates, and any required corrective action have been completed under the site’s approved procedures.
The exact owner depends on the organization’s quality manual, AS9100-aligned procedures, customer requirements, delegated MRB authority, and how the NCR workflow is configured in QMS, MES, ERP, or supplier quality systems. Do not assume the software assignee is the true process owner.
Common ownership model
A practical ownership model separates closure authority from task ownership:
- Quality usually owns NCR control, review, evidence sufficiency, and final closure authority.
- Manufacturing or operations usually owns containment on the shop floor and execution of approved rework, repair, segregation, or scrap actions.
- Engineering usually owns technical evaluation where product definition, design intent, repair schemes, or use-as-is justification are involved.
- MRB owns disposition decisions when the issue falls under material review authority and when that authority has been formally granted.
- Supply quality or procurement may own supplier-caused NCR coordination, supplier response, and evidence collection.
- CAPA or RCCA owners own root cause and corrective action work when the NCR triggers a formal corrective action process.
For minor internal nonconformances, Quality may be able to close the NCR after verifying correction and records. For major defects, escapes, recurring issues, customer-directed dispositions, or safety-critical characteristics, closure may require additional approvals and linked CAPA evidence before Quality can close the record.
What must usually be true before closure
NCR closure should not mean that the record was simply routed to the last approver. It normally means the organization has objective evidence that the nonconformance was controlled and resolved according to procedure.
- The affected material, serial numbers, lots, or work orders were identified and contained.
- The disposition was approved by the correct authority.
- Rework, repair, scrap, return-to-supplier, or use-as-is actions were completed as approved.
- Inspection or verification results were recorded.
- MES, ERP, inventory, traveler, inspection, and quality records are consistent.
- Customer notification or approval was completed where required by contract or procedure.
- CAPA, RCCA, or recurrence controls were opened or completed when required.
- The audit trail shows who approved what, when, and under which revision or authority.
If those records are incomplete, closure is weak even if the workflow status says “closed.” In regulated aerospace environments, the evidence matters more than the label.
Where closure breaks down
NCR closure often fails at system boundaries. The NCR may live in the QMS, while the affected work order is in MES, the inventory status is in ERP, the drawing revision is in PLM, and the inspection record is in a separate measurement or FAI system. If those systems are not integrated well, Quality may have to rely on manual checks, attachments, or cross-references.
That is common in brownfield aerospace environments. Full replacement of legacy MES, ERP, PLM, or QMS platforms is often unrealistic because of qualification burden, validation cost, downtime risk, integration complexity, traceability obligations, change control, and long equipment lifecycles. In practice, many organizations improve NCR closure by tightening workflow gates, data ownership, interfaces, and review controls rather than replacing every system.
Who should be accountable?
At the process level, the accountable owner is usually the Quality function or the defined quality process owner. At the action level, ownership is distributed. A well-controlled workflow makes that distinction explicit so that Quality is not forced to close records based on assumptions, missing evidence, or informal emails.
The safest answer is: Quality owns closure authority, but the business functions that caused, dispositioned, corrected, verified, or supplied the affected product own their assigned closure prerequisites. The site procedure, customer contract, and validated workflow should make that accountability visible and auditable.