A defect description needs an agreed requirement and a reliable way to measure it. Where results disagree, check the measurement setup and acceptance criteria before deciding whether the supplier process has changed. Keep suspect parts and relevant batch information available for investigation.
Separate immediate containment from permanent correction. Sorting or replacing a batch can reduce current exposure, but does not establish that the underlying cause has been removed. Define the evidence and follow-up period needed to judge the change.
Settled before we start
The questions worth answering first.
What exactly is the defect, and how is it measured?
A defect needs a definition, a measurement method, a sampling plan and an acceptance criterion. Where results disagree, the measurement setup is checked before the process is blamed.
Why did the existing control miss it?
There are two questions, not one: why the defect occurs, and why inspection did not stop it. Fixing only the first leaves the escape route open.
How do we confirm the fix held?
Actions get owners and dates, then later production is reviewed against the agreed criterion over a defined follow-up period. A replacement shipment or a training record is containment, not proof.