Definition

Final approach fix or point. That fix or point of an instrument approach procedure where the final approach segment commences.

Source: ICAO Annex 4: Aeronautical Charts

Description

The final approach fix (FAF) marks the beginning of the final approach segment of an instrument approach procedure. It is situated on the final approach track at a distance that permits selection of final approach configuration, deceleration to final approach speed, and descent from intermediate approach altitude/height to the appropriate MDA/H either for a straight-in approach or for a visual circling manoeuvre.