Operating below instrument approach minimums requires pilots to comply with §91.175 (c), ensuring they have the required flight visibility (determined by pre-planned methods like approach lights or landmarks), distinct identification of the runway environment (e.g., approach lights allowing descent to 100 feet above touchdown zone elevation), and the capability to land using normal maneuvers.
Circling approaches introduce additional complexities and risks, such as the potential for re-entering IMC (necessitating an immediate missed approach) and the need to stay within limited protected airspace, which varies with aircraft category and airport altitude.
Safe and legal operations below minimums depend heavily on significant advance planning, including a detailed strategy for determining visibility and identifying visual references, as well as choosing between a straight-in or circling approach well before reaching the initial approach fix.
Operations below minimums on an instrument approach can be quite simple if the ceilings and visibilities are significantly above minimums. But when the chips are down along with the ceilings and visibilities, things aren’t quite so simple. Let’s take a deep dive into what it takes to get an airplane on the ground after a successful instrument approach.
Da Rules
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