What action should be taken if the bearing pointer indicates a deviation from an NDB course?

When the bearing pointer indicates a deviation from an NDB course, the appropriate action is to return to the course while avoiding excessive intercept angles. This approach is crucial for maintaining a steady and accurate course when navigating using Non-Directional Beacons (NDBs).

Returning to the course involves correcting the aircraft's heading to intercept the desired radial from the NDB. By doing this smoothly and without abrupt changes, pilots reduce the risk of overshooting the course and can better manage their approach to the intended navigation path. Excessive intercept angles can lead to increased bank angles and altitude changes, making the navigation process less stable and potentially less safe.

Thus, focusing on a gradual return to the course not only aligns with best practices for instrument navigation but also enhances overall flight safety.