What information is found in Block 15 on a flight strip?

Block 15 on a flight strip contains critical information regarding the estimated time over a fix or clearance information specifically for departing aircraft. This information plays a vital role in managing the flow of air traffic and ensuring that all aircraft are accounted for as they transition through various phases of flight.

The estimated time over fix allows air traffic controllers to anticipate when an aircraft will reach specific points along their route, aiding in coordination with other traffic. Additionally, if the flight strip pertains to a departing aircraft, the clearance information helps ensure that the flight has been properly released from the gate and is following the correct procedures as they enter the airspace system.

This block assists controllers in maintaining situational awareness and planning for traffic sequences effectively. Understanding the nuances and details provided in Block 15 is essential for ensuring safe and efficient air traffic operations.