What is the Minimum Decision Altitude (MDA) for a LOC approach?

The Minimum Decision Altitude (MDA) for a Localizer (LOC) approach is defined as the lowest altitude to which a pilot may descend on final approach without visual references. The correct range for MDA is typically established for different types of approaches based on factors including aircraft performance, terrain, and obstacles.

For a LOC approach, the MDA generally falls within the range of 300 to 500 feet above the airport elevation. This altitude ensures that the aircraft can safely navigate to the runway while maintaining adequate clearance from any potential obstructions. The approach procedure is carefully designed to guide pilots using the Localizer signal, and understanding the MDA is crucial for making safe landing decisions.

In contrast, the other ranges provided do not correspond to typical MDA values for LOC approaches and may be appropriate for other types of approaches or scenarios. Thus, the identified range accurately reflects the standards set for achieving safety while attempting a LOC approach.