Where is the final approach fix located for precision approaches?

For precision approaches, the final approach fix is located at the glide slope intercept. This point is critical because it is where the aircraft begins its descent on the glide slope to the runway. The glide slope provides vertical guidance as part of an Instrument Landing System (ILS), allowing pilots to maintain the correct descent profile as they approach the runway. The final approach fix serves as the last reference point before initiating this descent, ensuring that the aircraft is correctly aligned and established on the glide slope for a safe landing.

While the runway threshold is the physical beginning point of the landing runway, and the missed approach point is where an aircraft transitions to an alternate procedure if it cannot land, the glide slope intercept is specifically designated for the purpose of guiding the descent. A final holding fix, although relevant in certain procedural contexts, does not represent the same critical juncture for precision approaches, as it is typically associated with holding patterns rather than the direct approach to the runway.