When the ILS glideslope component is out of service, which approach method is used in determining the missed approach point?

When the ILS (Instrument Landing System) glideslope component is out of service, the Localizer (LOC) approach becomes the method of choice for determining the missed approach point. The LOC provides lateral guidance to the runway but does not include vertical guidance like the glideslope.

In the absence of the glideslope, pilots can utilize the published missed approach procedures that are associated with the LOC. These procedures are designed to ensure safe navigation and separation from terrain or obstacles when a landing cannot be completed. The missed approach point for a LOC approach is specified in the approach charts, allowing pilots to know precisely where to initiate the missed approach if they cannot land safely.

The other options, while valid approaches in their own right, do not specifically relate to the missed approach point determination that arises due to the unavailability of the glideslope. For example, a VOR approach navigates using VOR stations but does not directly provide guidance for missed approach points in the context of a LOC approach situation. Similarly, NDB and Radar approaches have their own guidelines but are not tailored to the situation where glideslope guidance is lost, making LOC the most relevant choice in this case.