CAPA root cause

Aerospace manufacturers should document NCR-to-CAPA linkage with explicit, traceable cross-references between records, not informal comments or spreadsheet notes. Not every NCR requires CAPA, but the decision, rationale, evidence, ownership, status, and closure relationship should be controlled and auditable.

Yes, a single CAPA can address multiple related NCRs across programs when the evidence supports a common systemic root cause and the actions can be traced, verified, and approved for each affected program. The NCRs still need their own dispositions, records, and customer or program-specific handling where required.

An NCR records a specific nonconformance. MRB is the controlled review and disposition of affected material. CAPA addresses the underlying cause when the issue is systemic, recurring, high risk, or externally driven. They often connect, but they are not the same workflow.

Common MRB disposition paths include rework, repair, use-as-is, scrap, return to supplier, sorting or screening, and sometimes downgrade or alternate use. The allowed path depends on authority, customer requirements, engineering approval, traceability, and how the decision is recorded across QMS, MES, ERP, and PLM systems.