Quiz #118: Cleared ILS Approach

Editorial Staff

Wednesday, March 21, 2007 at 12:00 AM ET

Verified

Key Takeaways:

The Instrument Landing System (ILS) is still actively used for aircraft approaches.
Despite the prevalence of GPS, this ground-based navigation system maintains its relevance in aviation.
ILS approaches involve precise instructions, such as maintaining altitude until established on the localizer.

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“Four from the marker, maintain 2000 until established on the localizer, cleared ILS 22 approach.” Readback correct. In a GPS world, the ground-based Instrument Landing System still breathes. See if you can keep the needles crossed.