Why did the defect, problem, or concern occur? is the defect, problem, or concern? Why did the defect, problem, or concern occur? Why? Why? Why? Why? Root Cause? Root Cause? Yes or
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What is the defect, problem, or concern? Why did the defect, problem, or concern occur? Why? Why? Why? Why? Root Cause? Yes or No Root Cause? Yes or No Root Cause? Yes or No Root Cause? Yes or No Root Cause? Yes or No