Plain English Meaning

The exact altitude you must be at when you reach the point where the final straight-in part of the approach begins. From there, you start your final descent toward the runway.

Full Definition

The published altitude at which an aircraft must cross the Final Approach Fix (FAF) when flying a non-precision instrument approach. It marks the start of the final descent toward the runway and is depicted on the approach chart at the FAF symbol.

Context Anchor

Seen on instrument approach charts, especially in the profile view where the approach path and are shown.