Tell me about a time when the same defect returns because only the symptom was corrected. What did you do?

I first confirmed the facts and contained the immediate impact. Next, I reviewed 8D evidence, verification data, and effectiveness monitoring and coordinated the action to separate occurrence cause, escape cause, containment, and permanent corrective action. After verifying the result, I summarized the root cause, preventive control, owner, and follow-up plan so the issue would not recur.