After an NCR is raised, the affected material, product, process, or record is typically placed under control, reviewed by the appropriate quality and technical functions, dispositioned, corrected if required, and closed with documented evidence. The exact workflow depends on the type of nonconformance, customer or regulatory requirements, delegated authority, and how well the site’s MES, ERP, QMS, PLM, and maintenance systems are integrated.
Immediate containment
The first practical step is usually containment. This may include stopping use of the affected part, placing inventory on hold, segregating material, blocking shipment, pausing an operation, or preventing further processing in the MES or traveler.
Containment is not the same as root cause correction. It is a control to prevent escape or additional impact while the issue is assessed. In weak processes, this is where failures often occur: material is physically tagged but not blocked in ERP, or a digital hold exists but operators are not clearly prevented from continuing work.
Review and classification
Quality, engineering, manufacturing, supply chain, or maintenance personnel then review the NCR. They determine what is affected, how severe the issue is, whether traceability is complete, and whether the condition is isolated or potentially systemic.
Common review questions include:
- Which serial numbers, lots, batches, work orders, or aircraft records are affected?
- Was the issue found before or after shipment, installation, or release?
- Is there a drawing, specification, procedure, or work instruction requirement that was not met?
- Does the issue require customer, regulatory, or delegated engineering review?
- Does the issue trigger supplier notification, escape management, or CAPA?
Disposition
The NCR is then dispositioned by authorized personnel. Common dispositions include rework, repair, use-as-is, scrap, return to supplier, or further investigation. In aerospace and similarly regulated environments, some dispositions require Material Review Board involvement, engineering approval, customer approval, or evidence that the organization has delegated authority to make the decision.
This is a major boundary condition. A site should not assume that a local quality engineer can approve every nonconformance. Authority depends on contracts, customer flow-downs, design ownership, certification basis, internal procedures, and the nature of the defect.
Execution of the disposition
Once approved, the disposition must be executed and recorded. Rework or repair may require approved instructions, updated routing steps, inspection requirements, additional test evidence, or revised maintenance records. Scrap may require inventory adjustment, physical control, and financial coding. Supplier-related NCRs may require supplier response and receiving controls.
In brownfield environments, this is often where integration debt becomes visible. The QMS may hold the NCR, the MES may control execution, ERP may own inventory status and cost, PLM may own design definition, and the maintenance system may own aircraft or asset records. If these systems do not exchange status reliably, manual controls and reconciliation are usually required.
Root cause and CAPA, when required
Not every NCR automatically becomes a CAPA. Many sites distinguish between isolated nonconformances and recurring, severe, escaped, or systemic issues. When the threshold is met, the NCR may trigger root cause analysis and corrective action.
That work may use 5 Why, fishbone analysis, 8D, RCCA, or another approved method. The important point is not the label of the method. The corrective action must address the real cause, be implemented under change control where needed, and be verified for effectiveness. Otherwise, the NCR may be closed administratively while the failure mode remains in the process.
Closure and records
An NCR is normally closed only after required actions are complete, evidence is attached or referenced, approvals are captured, and affected records are updated. Closure should leave a traceable record of what happened, who approved it, what material or records were affected, what disposition was used, and what verification was performed.
Digital systems can improve control, but they do not remove the need for process discipline. Poor master data, unclear approval authority, inconsistent defect codes, missing attachments, or weak interface controls can produce a digital record that still fails to explain the event clearly.
What can go wrong
Common failure modes include late containment, unclear ownership, unofficial rework instructions, inventory holds that do not match physical reality, MRB decisions made without proper authority, CAPA opened for every minor issue, or CAPA avoided for recurring issues. Another common problem is closing the NCR in the QMS while related work orders, inspection records, supplier records, or ERP inventory remain inconsistent.
For this reason, replacing one system rarely fixes NCR handling by itself. In regulated brownfield operations, full replacement of MES, ERP, PLM, or QMS platforms is often unrealistic because of validation cost, qualification burden, downtime risk, integration complexity, traceability obligations, and long equipment lifecycles. Improving NCR performance usually requires clearer workflow rules, better system interfaces, disciplined change control, and practical manual controls where integration is not yet reliable.