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Operations at Nontowered Airports Can Be Tricky

A new FAA AC cautions against performing a straight-in approach to a nontowered airport when there are other aircraft in the pattern.

There are nearly 20,000 nontowered airports in the U.S. [Credit: Julie Boatman]
Gemini Sparkle

Key Takeaways:

  • The FAA has released a new Advisory Circular (AC 90-66C) providing crucial guidance and best practices for safe operations at the majority of U.S. nontowered airports.
  • A primary caution emphasized in the AC is to avoid straight-in approaches at nontowered airports when other aircraft are in the pattern, as this significantly increases the risk of midair collisions.
  • Pilots must prioritize consistent communication on the common traffic advisory frequency (CTAF), providing clear self-announcements of intentions and positions using landmarks, starting well in advance of arrival or departure.
  • The AC reinforces the importance of adhering to standard traffic patterns, understanding right-of-way rules, maintaining situational awareness, and making aircraft as visible as possible.
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One of the first surprises for many people learning to fly is that not every airport has a control tower. In fact, the majority of them don’t. 

The FAA recognizes this and has released a new advisory circular (AC) covering nontowered airport operations. While ACs are not regulatory in nature, they offer guidance for best practices. Much of the information should be a review for most pilots, as it is also covered in The Pilot’s Handbook of Aeronautical Knowledge and Chapter 4 of the Aeronautical Information Manual (AIM).

Meg Godlewski

Meg Godlewski has been an aviation journalist for more than 24 years and a CFI for more than 20 years. If she is not flying or teaching aviation, she is writing about it. Meg is a founding member of the Pilot Proficiency Center at EAA AirVenture and excels at the application of simulation technology to flatten the learning curve. Follow Meg on Twitter @2Lewski.

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