INSTRUMENT APPROACH PROCEDURE SEGMENTS

An instrument approach may be divided into as many as four approach segments: initial, intermediate, final, and missed approach. Additionally, feeder routes provide a transition from the en route structure to the IAF.

Figure 5-26. Approach Chart Briefing Sequence.

The U.S. Standard for Terminal Instrument Procedures (TERPS) criteria provides obstacle clearance for each segment of an approach procedure as shown in Figure 5-27 on page 5-38.