C-17 Tow Supervisor And Brake Operator Pre-Test Practice

Before towing into a hangar with corrosive foam systems, engine inlet covers and exhaust plugs must be installed.

True False Only if engines present Only for certain models

Correct Answer:

True

Explanation:

Before towing into a hangar that has corrosive foam fire-suppression systems, engine inlet covers and exhaust plugs must be installed. The reason is straightforward: corrosive foam can cause rapid chemical damage to engine components if it gets into the air intake or exhaust path, so covering the inlets and sealing the exhaust prevents foam and debris from entering the propulsion system during tow. This protective measure is a safety standard applied whenever the aircraft is to be moved into such an environment, regardless of engine status or model, because it directly reduces the risk of corrosion and foreign material damage to the engines. After the tow is complete, remove and inspect the covers to ensure there’s no residue or damage before engine operation.

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