On a precision approach, what defines the missed approach point?

The missed approach point (MAP) on a precision approach is defined by the Decision Height (DH) on the glideslope. The DH is a specified altitude that the pilot must reach while following the precision approach procedure. If the aircraft does not establish visual contact with the runway or does not meet the required criteria for landing at or above this altitude, the pilot is required to execute a missed approach. This means that the DH is directly tied to the point at which the approach can be continued or must be aborted, making it the critical indicator for the missed approach point in precision approaches.

In the context of other choices, while manual timing from the Final Approach Fix (FAF), published Distance Measuring Equipment (DME), and visual references are relevant in various aspects of approaches, they do not specifically define the point at which a missed approach must be initiated during a precision approach. The DH is the sole parameter that provides the necessary altitude information used in this specific context for decision-making during the approach phase.