Flight progress data must be forwarded at least how many minutes before the aircraft is estimated to enter the receiving facilities area?

The requirement to forward flight progress data at least 15 minutes before an aircraft is estimated to enter the receiving facilities area is based on the need for adequate preparation and coordination among air traffic control and other relevant parties. This 15-minute window allows controllers to process the flight information and manage air traffic effectively, ensuring that the aircraft can be accommodated safely and efficiently within the receiving airspace.

This interval is critical because it provides time for necessary adjustments, such as clearing other aircraft, preparing landing instructions, and coordinating with ground services. The proactive sharing of this information ensures that any potential delays or issues can be addressed well in advance, enhancing overall safety and operational efficiency. A shorter notice period may not afford sufficient time for these crucial preparations, which could lead to congested airspace and risk of miscommunication.