FAA Ground School Practice Test

What does a steady green light signal from a control tower indicate to an aircraft in flight?

1. Cleared to launch

2. Cleared to land

3. Proceed with caution

4. Return to the landing pattern

The correct answer is: Cleared to land

A steady green light signal from a control tower indicates that the aircraft is cleared to land. This signal is part of the standardized visual communication from air traffic control to pilots, communicated through the use of colored lights from the control tower. The green light signifies to the pilot that it is safe and appropriate to make their landing approach, suggesting that the runway is clear and that air traffic control is granting landing rights at that moment. Understanding the meaning of these signals is crucial for pilots as it directly influences the safe operation of aircraft in controlled airspace. In contrast, other signals serve different purposes: for instance, a steady red light would indicate that the pilot should hold their position, while a flashing green light means the aircraft is cleared for takeoff or that a returning aircraft should circle for landing. Knowing these signals enhances situational awareness and supports effective communication between a pilot and air traffic controllers.