Which sequence lists the segments that can be part of an instrument approach procedure?

• A. Arrival, initial, intermediate, final, missed approach
• B. Arrival, holding, initial, intermediate, final, missed approach
• C. Descend, holding arrival, initial, intermediate, final, missed approach
• D. Initial, intermediate, final

Answer: (A)

Instrument approach procedures are built from a sequence of segments that guide you from initial alignment to the runway, ending with a missed approach if needed. The named approach segments you’ll typically navigate are the initial segment, followed by the intermediate segment, then the final approach segment, and finally the missed approach segment.

The option that includes an Arrival before those approach segments reflects how pilots transition from en route or terminal routing to the instrument approach. An Arrival procedure (STAR) is used to bring you to the approach path and connect you to the approach flow; it’s commonly shown together with the approach segments as part of the overall sequence, which is why this option is considered correct.

Other sequences aren’t standard because they introduce elements not classified as standard approach segments. For example, holding may be used within procedures but isn’t listed as a separate segment of the instrument approach itself, and “descend” isn’t a standalone named segment—the descent occurs within the final approach.