According to procedures, when must communication transfer occur before an aircraft reaches the final approach fix?

Communication transfer must occur before the aircraft reaches the final approach fix to ensure that pilots are adequately prepared for the approach and landing phase. The correct distance for this transfer is 5 miles from the airport, as this distance allows for effective coordination between the aircraft and the air traffic control tower.

This timing provides a buffer to establish the necessary communication and receive important information regarding approach clearance, traffic advisories, and any changes to the flight plan. Transferring communication too late may result in the pilot not having enough time to react or adjust to changes, which can compromise safety during the critical phase of landing. The procedures are designed to enhance situational awareness and ensure that pilots have clear guidance as they transition from en-route to approach and landing.

Other distances, such as 2, 7, or 10 miles, do not align with standard operating procedures, as they may not provide the optimal time or distance for effective communication transfer, leading to potential risks during landing operations.