What action should follow a transfer of control to ensure safety?

After a transfer of control, constant monitoring of the aircraft's behavior is essential to ensure safety. This ongoing observation allows the controller to quickly assess the new pilot’s handling of the aircraft and verify that the flight is being conducted safely under their control.

Monitoring is crucial because it can help identify any potential issues early on—such as deviations from the assigned flight path, altitude restrictions, or any signs of difficulty from the pilot. Additionally, ensuring that the aircraft remains in a safe operational state after the transfer assists in maintaining situational awareness, which is vital for effective decision-making in air traffic management.

While documenting the transfer, providing immediate clearance for landing, or informing the flight operations team are also important actions, they do not directly contribute to the immediate safety monitoring of the aircraft in flight. The primary focus right after a transfer of control should always include thorough and continuous monitoring to enhance safety.