For a non-precision approach at KAMA with minimums of 3/4-mile visibility and 400 feet ceiling, can the pilot legally execute the approach based on given METAR data?

In this scenario, the approach requires a minimum ceiling of 400 feet and visibility of 3/4-mile. The pilot can only proceed with the non-precision approach if the weather conditions meet or exceed these minimums.

If the given METAR data reveals that the ceiling is below the required 400 feet, then the pilot cannot legally execute the approach. This ruling is based on the fundamental safety regulations that govern instrument flight rules, which stipulate strict adherence to established minimums to ensure safety during approach and landing phases. Meeting minimum ceiling requirements is critical because it dictates the altitude at which a pilot must be able to visually ascertain the runway environment for safe landing.

There can be scenarios where visibility might be adequate, but if the ceiling is below the specified threshold, this cannot justify proceeding with the approach—thus making the option concerning not meeting minimum ceiling requirements correct. The importance here lies in the recognition that both ceiling and visibility need to be satisfied to execute the approach legally.