Glossary

Corrective action

A specific change implemented to remove an identified root cause of a nonconformity, defect, or failure in a process or product.

Quality, Compliance and Traceability Non-Conformance Management in Aerospace: Digital Workflows, Compliance, and Continuous Improvement

Corrective action is a defined step or set of steps taken to remove the verified root cause of an identified problem, nonconformity, defect, or failure in a process, product, or system.

In an operational context, corrective actions are developed after an investigation such as Root Cause Analysis (RCA). They are:

Based on documented evidence of the root cause
Formally approved before implementation
Executed according to a plan with assigned responsibilities and deadlines
Verified for effectiveness using data, tests, or inspections
Recorded in relevant logs, reports, or quality management systems

Corrective action is distinct from:

Containment actions, which temporarily control or isolate the problem
Preventive actions, which address potential issues that have not yet occurred

You can never prove with certainty that a corrective action fixed the true root cause, but you can build strong evidence. In regulated manufacturing this means defining specific leading and lagging metrics, observing performance over enough production cycles, checking for side effects, and formally verifying effectiveness through structured reviews and traceable records. Results will depend on data quality, process stability, and how well actions were implemented across legacy systems and sites.

Can one NCR cover multiple affected parts or work orders?

A single nonconformance report (NCR) can sometimes cover multiple parts or work orders, but only if your quality system, procedures, and regulators allow it and the nonconformance is clearly the same condition. You must still maintain traceability, clear containment, and evidence that all affected items were evaluated and dispositioned under controlled change.

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