When is the appropriate time to lower the flaps to the landing position during a Precautionary Emergency Landing?

Lowering the flaps to the landing position at the appropriate time during a Precautionary Emergency Landing is crucial for ensuring a safe and controlled descent. The correct choice emphasizes that flaps should be deployed when landing is assured, which means the pilot has confirmed a stable approach to the runway and can commit to landing. This approach helps in optimizing lift and drag, allowing for better control of the aircraft's descent and landing configuration.

Deploying flaps too early, such as while in a high energy state or during high key, could lead to an unstable approach and may compromise the aircraft's capabilities to manage speed and altitude effectively. Similarly, waiting until base key (the turn towards the runway) or never deploying the flaps could lead to insufficient lift during landing, increasing the risk of a hard landing or an uncontrolled descent. Therefore, ensuring flaps are extended at the right moment—when the pilot has a clear and assured opportunity to land—is essential for maintaining safety during this critical phase of flight.