In what scenario is a non-precision approach typically used?

A non-precision approach is typically used in scenarios where vertical guidance is not available. This means that pilots will rely primarily on lateral navigation aids, such as VOR (VHF Omnidirectional Range) or NDB (Non-Directional Beacon) system, without a reliable means of receiving vertical position information like glide slope data. In these situations, pilots use step-down fixes and minimum descent altitudes to safely navigate to the runway.

The other scenarios listed, such as severe weather conditions, high-traffic airport environments, or during mandatory instrument training, do not specifically relate to the utilization of a non-precision approach. While non-precision approaches can be performed in a variety of conditions, they are fundamentally defined by the lack of vertical guidance rather than situational factors like weather or air traffic density.