After signaling to the pilots about an external fire, what should happen next?

After signaling to the pilots about an external fire, it is essential for the safety of everyone involved that the engine should wind down. This action is critical because it removes power from the engine, thus reducing the risk of further fueling the fire. When an engine is winding down, fuel flow decreases, and any chance of an explosion or escalation of the fire is minimized.

Winding down the engine is a standard safety protocol in emergency situations involving fire, as it helps to protect the crew and equipment. Ensuring that the engine is not producing thrust also aids in facilitating a safe evacuation if necessary. This procedure is typically reinforced in training because it directly contributes to handling fire emergencies effectively.