Visual Area Protection

Visual area penetrations have become a challenging problem for the FAA, airports and pilots. First, keeping track of them can be a moving target. Then theres the conflict between the hazard of visual area obstacles and the safety benefit of using an advisory glidepath. Although weve covered various aspects of this topic in the April and July 2013 issues of IFR, recent changes could affect approaches you fly.

Key Takeaways:

• Visual area penetrations by obstacles near runways pose a significant safety risk, especially when pilots mistakenly rely on advisory glidepaths below the Minimum Descent Altitude (MDA) on non-precision approaches, where obstacle clearance is not guaranteed.
• The FAA has implemented new policies to manage these penetrations more proactively, leading to procedure penalties (e.g., higher visibility minimums, night restrictions) but also offering structured mitigation options and waivers.
• Mitigation efforts, such as the removal of Vertical Descent Angles (VDAs) from some approaches, have caused unintended navigation system compatibility issues, underscoring the critical need for pilots to meticulously review approach charts and verify information.

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