During an in-flight engine fire, what is a critical step to take?

In the event of an in-flight engine fire, performing an autorotation with a power-off landing is a critical and appropriate response. Autorotation allows the pilot to control the descent and landing of the helicopter without engine power. This maneuver enables the pilot to manage airspeed and descent rate effectively, increasing the chances of a safe landing in a situation where the engine is compromised.

Choosing to autorotate is vital because it helps to ensure that the helicopter can be brought down safely, minimizing the risk of a more catastrophic outcome due to losing control or risking an uncontrolled descent. It emphasizes the importance of prioritizing control of the aircraft over trying to troubleshoot or mitigate the engine issue in the moment, which may not be feasible or safe.

Other options, such as increasing altitude or shutting off electrical systems, might not directly aid in addressing an active engine fire and could even complicate the situation. Ensuring cabin heat is on, for instance, would not be advisable as it could exacerbate the fire or distract from the more critical task of managing the in-flight emergency.