When a component is found unserviceable during inspection, what action is appropriate?

• A. Return to service after minor cleaning.
• B. Document, re-label, and discard.
• C. Tag as unserviceable; isolate; dispose or replace.
• D. Ignore and proceed.

Answer: (C)

When a component is found unserviceable during inspection, the proper action is to tag it as unserviceable, isolate it from all serviceable stock, and arrange for disposal or replacement. Tagging clearly communicates its status and the reason it failed, so floor personnel don’t attempt to use it. Isolating physically prevents any chance of it being installed or returned to service, which protects safety and reliability. Disposal or replacement removes the unserviceable item from inventory and ensures a serviceable part is available to maintain operations. Documentation is typically required to show what happened and why, preserving traceability. Attempting to restore it by cleaning or simply ignoring it would risk equipment failure and is not acceptable.