When should power be reduced to 4-6% torque during a Precautionary Emergency Landing (PEL)?

Power should be reduced to 4-6% torque once within dead engine glide distance of a low key position during a Precautionary Emergency Landing (PEL). This specific timing is crucial because it helps ensure that the aircraft is set up correctly for a safe landing while maximizing the glide capability.

Being within dead engine glide distance means that the aircraft is at a point where it can maintain a controlled descent toward the landing area without requiring engine power. Reducing power at this stage allows the pilot to manage airspeed and stabilize the approach, preparing to execute a successful landing. This also helps in preventing the aircraft from entering an unwanted climb or acceleration situation as the aircraft decelerates, which is particularly important in an emergency scenario where careful control of descent and speed is essential.

Choosing to reduce power at other points, such as during the initial descent segment or approaching the runway, may not provide the optimal conditions for gliding and could risk overshooting the intended landing area, while doing so before the landing checklist may distract from managing the emergency procedure effectively. Thus, the timing of reducing power effectively aligns with ensuring the aircraft maintains a safe, controlled glide toward the landing position.