What is defined as the predetermined altitude at which a pilot must decide whether to continue an approach or execute a go-around?

The predetermined altitude at which a pilot must make the critical decision to either continue with the approach or execute a go-around is referred to as Decision Height. This altitude is particularly significant during instrument approaches, where the pilot loses visual references and must rely on instrument indications.

At Decision Height, pilots assess whether they have the required visibility and runway environment in sight in order to safely land. If they do not see the necessary visual cues, the appropriate action is to initiate a go-around, which is a standard procedure to safely exit the approach. This decision point is crucial for maintaining safety and ensuring that the aircraft does not land unless it is assured of a safe arrival on the runway.

Other options, while related to aviation safety and operations, refer to different concepts. Minimum Safe Altitude pertains to the lowest altitude at which an aircraft can fly in certain areas without risk of striking obstacles, while Missed Approach Point signifies the precise location on the approach at which a go-around must be initiated if landing is not feasible. Safety Threshold, though applicable in safety discussions, does not correspond to a specific altitude decision point in the context of approach procedures. Thus, Decision Height is the correct term for this crucial moment in the approach trajectory.