Where is the final approach fix located for precision approaches?

The final approach fix (FAF) for precision approaches is located at glide slope intercept. This is a crucial point because it indicates where the aircraft will begin to actively follow the glide slope down to the runway. At this location, the aircraft is typically on a stabilized approach, and pilots will begin their descent based on the precise vertical guidance provided by the glide slope.

The glide slope works in conjunction with the localizer to provide the necessary lateral and vertical guidance for landing. By identifying the FAF at the glide slope intercept, pilots have a clear indication of when to establish and maintain the correct approach trajectory, making it essential for a safe and efficient landing.

Other potential final approach fix locations would not serve the same purpose. For example, the runway threshold marks the end of the landing surface but does not provide the necessary altitude information. The missed approach point, on the other hand, is where a go-around would be initiated if a safe landing cannot be accomplished, and the final holding fix serves to establish an initial approach procedure rather than defining the final approach for a precision landing.