What should be done if a connector shows visible corrosion before installation?

What should be done if a connector shows visible corrosion before installation?

• A. Replace the connector and document the replacement
• B. Clean it with water and reuse
• C. Ignore it; corrosion is cosmetic
• D. Duct tape it to prevent contact

Answer: (A)

Visible corrosion on a connector signals that the conductive surfaces and sealing features may be compromised, which can raise contact resistance, cause intermittent connections, arcing, or failure of the electrical system. For safety and reliability, the correct action is to replace the corroded connector with a serviceable unit before installation. Document the replacement in the maintenance records so there is a clear trace of airworthiness and part history. Cleaning with water or solvents is not an acceptable fix for corrosion on critical electrical connectors, and reusing a corroded part or attempting to tape it off would leave the system unsafe.

Visible corrosion on a connector signals that the conductive surfaces and sealing features may be compromised, which can raise contact resistance, cause intermittent connections, arcing, or failure of the electrical system. For safety and reliability, the correct action is to replace the corroded connector with a serviceable unit before installation. Document the replacement in the maintenance records so there is a clear trace of airworthiness and part history. Cleaning with water or solvents is not an acceptable fix for corrosion on critical electrical connectors, and reusing a corroded part or attempting to tape it off would leave the system unsafe.