What routine maintenance would you perform on JBD deflector surfaces?

• A. Inspect surface for wear or pitting, clean, check mounting and actuation mechanism.
• B. Replace deflector annually without inspection.
• C. Repaint without cleaning.
• D. Ignore the deflector surfaces.

Answer: (A)

Routine maintenance on JBD deflector surfaces focuses on preserving surface integrity and ensuring the deflector operates correctly during flight operations. The deflector faces harsh conditions from jet blast, debris, and heat, so you must look for wear or pitting that could weaken the surface, clean off buildup that can accelerate wear or hide defects, and verify the mounting and actuation mechanism to ensure the deflector is properly supported and can move into position as required.

The best maintenance routine includes inspecting the surface for wear or pitting, cleaning the surface, and checking the mounting and actuation mechanism. This approach protects the deck from jet blast while ensuring the deflector moves and stays in the correct position.

Other options miss essential steps or introduce unnecessary practices: replacing the deflector annually without inspection neglects condition and mechanical checks; repainting without cleaning leaves corrosion and defects unaddressed; ignoring the deflector surfaces risks undetected damage that could compromise safety and performance.