What does "Readback" mean in ATC communication?

In the context of air traffic control communication, "Readback" refers to the action of pilots repeating back instructions received from air traffic control (ATC) to confirm their understanding. This process is vital for safety, as it helps ensure that both the pilot and the controller are on the same page regarding the instructions issued. The act of readback allows for the verification of critical information, such as altitude assignments, route changes, or clearances, minimizing the risk of miscommunication or errors that could lead to dangerous situations.

This method of communication is standardized and part of best practices in aviation, as it ensures clarity and accountability in exchanges between pilots and controllers. When pilots read back instructions accurately, it enhances situational awareness for both parties and helps to maintain safe operations within the airspace.