What should you do if you are unsure about a defect’s cause?

• A. Escalate to a supervisor or QA and perform the documented diagnostic steps.
• B. Delay any action until a second inspector reviews it.
• C. Replace the component with a known good spare immediately.
• D. Accept the risk and proceed with the inspection.

Answer: (A)

When you’re unsure about what’s causing a defect, the correct course is to escalate to a supervisor or QA and follow the documented diagnostic steps. This keeps the investigation under proper authority, uses standardized procedures, and ensures the issue is traced and resolved correctly without guessing. Replacing parts on the fly bypasses investigation and can mask the real cause, while delaying action or accepting risk leaves the defect unresolved and could compromise safety and quality.