Definition
The segment of an instrument approach procedure between the initial approach fix (IAF) and the intermediate fix (IF), or between the IAF and the point where the aircraft is established on the intermediate or final approach course. It is the portion of the approach where the aircraft transitions from the en route or arrival phase toward the final descent path.
Plain English
The first part of an instrument approach, where the aircraft leaves its arrival route and begins lining up with the runway approach path.
Context Anchor
Seen on instrument approach charts and in IFR approach planning, especially when identifying where an approach procedure begins and what altitude or course to fly first.
Derivation
Initial comes from the Latin initialis, meaning 'beginning.' Approach comes from the Latin appropriare, 'to come nearer.' Together: the beginning portion of getting closer to the runway.
Why Pilots Care
Sets the altitude, speed, and configuration needed to transition safely into the final approach segment.
Intuition Check
Initial approach does not mean any first move toward an airport. In FAA instrument procedures, it means a specific published segment at the start of an instrument approach.
Example Sentence 1
After crossing the IAF, the pilot began the initial approach segment and started a gradual descent toward the intermediate fix.
Example Sentence 2
During the initial approach the crew completed the landing checklist and slowed to approach speed.