Reference AC 90-66B - Non-Towered Airport Flight Operations
Please give special attention to safe operations at non-towered airports during flight planning, student through advanced pilot training, Practical Tests, WINGS/Flight Reviews, airmen currency checks; whenever a pilot is being trained and/or evaluated by a Certified Flight Instructor (CFI), Designated Pilot Examiner (DPE), Chief Pilot, Chief Flight Instructor, Check Airman, etc.
With the safety concerns at non-towered airports (the U.S. has approximately 500 airports with control towers compared to about 20,000 non-towered airports) along with temporarily reduced hours of operation for towers across the country, this is especially timely and will serve safety now and later. Thank You!
V. Lee Unger