What should a pilot do if they anticipate a high altitude approach?

When a pilot anticipates a high altitude approach, it's essential to communicate that information to Air Traffic Control (ATC) prior to descent. Informing ATC allows them to adjust their traffic management and provide appropriate services, ensuring a safe and efficient transition into the approach phase. This is vital for maintaining situational awareness and managing airspace effectively, particularly in busy air traffic environments.

By notifying ATC in advance, the pilot helps facilitate a smoother coordination of flight operations, which can be crucial to managing the separation from other aircraft and adhering to any required altitude restrictions as they prepare for landing. This proactive communication reflects best practices in aviation and enhances safety by ensuring that all parties are aware of the pilot's intentions and anticipated approach profile.

Other options do not prioritize timely communication with ATC or suggest actions that could lead to safety concerns. Discussing the approach with the crew is important, but it should not take precedence over notifying ATC. Waiting until descending to make a request could lead to delays or complications in air traffic management. Changing flight plans immediately could cause unnecessary confusion unless warranted by safety considerations. Hence, the most effective and appropriate course of action is to communicate any anticipated approaches to ATC before beginning the descent.