What must be done on a daily basis with unpainted aircraft surfaces and actuating rods?

• A. They must be painted
• B. They must be insulated
• C. They must be cleaned or wiped down
• D. They must be oiled

Answer: (C)

Unpainted metal on aircraft surfaces and actuating rods is exposed to moisture, salts, and pollutants, which can drive corrosion if left in place. Cleaning or wiping down these areas daily removes these contaminants, reduces moisture retention, and makes any early signs of corrosion easy to spot during inspection. For actuating rods, a clean surface also helps prevent dirt from causing sticking or wear and ensures lubricants can function properly where needed. Painting or insulation isn’t the routine daily action for these parts, and while lubrication is important, the daily, essential step for preventing corrosion and ensuring readiness is keeping the surfaces clean.