If additional circuits of the holding pattern are needed to lose altitude, what must the pilot do first?

In situations where a pilot determines that additional circuits of the holding pattern are necessary to lose altitude, the appropriate first step is to advise Air Traffic Control (ATC) and obtain approval. This procedure ensures that both the pilot and the ATC are coordinated in the management of the aircraft's altitude and trajectory, maintaining safety and efficiency within the airspace.

Communicating with ATC is essential because they are responsible for the separation of aircraft and might have specific instructions or restrictions in place due to traffic, weather, or other operational considerations. Getting pre-approval also helps in avoiding conflicts with other aircraft and allows ATC to manage the pattern effectively.

This approach underlines the importance of communication and adherence to regulations in aviation. It distinguishes between personal decision-making and the obligations to inform and collaborate with air traffic management. Other options, such as proceeding at pilot's discretion or restricting the action to emergencies, do not align with the standard safety protocols followed in aviation, which prioritize coordination with ATC before taking actions that could impact controlled airspace.