When crossing the boundary in a climb or descent to JAN/MLU Approach, what action must the student take?

The correct answer involves requesting approval for the climb or descent after the handoff has been initiated. This is a critical action in air traffic control procedures, especially when transitioning between different facilities or sectors.

Initiating the handoff first ensures that the next controller is informed and can prepare for the incoming aircraft that will be ascending or descending. This allows for better coordination and traffic management. Once the handoff is recognized and acknowledged, the controller can then follow up by asking for approval for the climb or descent. This approach maintains safety and ensures that all communications are properly established, thereby minimizing the risk of miscommunication during those critical phases of flight.

In terms of operational protocol, it is imperative to establish communication with the incoming control before making altitude changes, as this can have significant implications on traffic flow and safety. It reflects best practices in maintaining situational awareness and ensuring compliance with air traffic regulations.