Final answer:
The statement is false because when a pilot presses the "IDENT" button, the aircraft's transponder sends a special signal to the radar screen, not a sound to the controller's headset.
Step-by-step explanation:
The statement is false. When a pilot presses the "IDENT" button on an aircraft, it does not result in a sound being transmitted to the controller's headset. Instead, the aircraft's transponder returns a special signal on the radar screen, which is usually represented by a flashing or highlighted icon, enabling air traffic controllers to easily identify and verify the aircraft's position on their radar display. This identification process is critical for maintaining proper aircraft separation and safe air traffic management.