What action is taken by a pilot when following the downwind leg?

When a pilot is following the downwind leg of the traffic pattern, the primary action taken is to prepare for landing by making a turn towards the runway. This transition is part of the standard approach sequence as the aircraft is positioned parallel to the runway and is preparing to enter the base leg, leading to a final approach for landing.

During the downwind leg, the pilot will assess their spacing from the runway, monitor their altitude, and be prepared to modify their flight path, including the turn towards the runway, ensuring they align with proper procedures and safety standards. Understanding the flow of air traffic and adhering to standard operating procedures is critical at this stage of flight.

The other actions listed, such as climbing to a higher altitude or descending to a lower altitude, do not typically occur during this phase of flight. Instead, maintaining a steady altitude while assessing the conditions is crucial as pilots prepare to make the necessary adjustments for landing.