Missed approach point

Missed approach point (MAP or MAPt) is the point prescribed in each instrument approach at which a missed approach procedure shall be executed if the required visual reference does not exist.^[1] It defines the point for both precision and non-precision approaches wherein the missed approach segment of an approach procedure begins. A pilot must execute a missed approach if a required visual reference (normally the runway or its environment) is not in sight upon reaching the MAP or the pilot decides it is unsafe to continue with the approach and landing to the runway. The missed approach point is published in the approach plates and contains instructions for missed approach procedures to be executed at this point.

Definition of MAP depends on whether the approach flown is a precision or a non-precision one:^[2][3]

• Non-precision approach. The MAP for a non-precision approach is typically crossed at the minimum descent altitude (MDA), and may be anywhere from well before the runway threshold to past the opposite end of the runway, depending on terrain, obstructions, NAVAID location and air traffic considerations.^[4]
• Precision approach. The MAP on a precision approach is reached when the aircraft reaches the decision height prescribed for the approach while maintaining the glideslope.

In both cases, the pilot in command must make a clear and unequivocal Yes/No decision upon arrival at the MAP point – either the runway (or its specified environment) is positively visible and accessible for landing using a safe and stabilized approach (i.e. no excessively steep bank or descent angles required), in which case the approach to landing may be continued, or else the approach must be discontinued and the published missed approach procedure must be initiated immediately.