What action should be taken if fire is confirmed during flight?

In the event of a confirmed fire during flight, shutting off the power is a critical action to prevent further fuel ignition or damage. Turning the Power Control Lever (PCL) OFF helps to eliminate the fuel source that could be feeding the fire, thereby reducing the potential for further escalation.

This option prioritizes safety by minimizing risks associated with an active fuel supply. It is an essential step before considering using onboard fire suppression systems or other emergency procedures because without addressing the fuel source, attempts to extinguish the fire may be ineffective.

Other potential actions may involve managing the aircraft's systems, but the immediate response to a fire largely revolves around controlling the situation by cutting off fuel supply.