What should a pilot rely on when their primary navigation system fails?

When a primary navigation system fails, a pilot should rely on backup instruments and alternatives. This is crucial for maintaining situational awareness and ensuring safe navigation despite the failure of the primary system. Backup instruments are designed to provide essential flight data and can help guide the pilot in managing the aircraft’s course, altitude, and other critical parameters.

In this scenario, the use of alternative navigation methods is vital. This may include using visual references, dead reckoning, or other forms of navigation like GPS or VOR, provided they are functioning. By leveraging these backup resources, the pilot can effectively respond to the situation and work towards safely handling the aircraft.

Relying on emergency procedures for landing might only come into play if the failure leads to an immediate threat, but the first step is often to utilize whatever backup resources are available. Resting until help arrives is not a viable or responsible option, as it does not address the immediate need for navigation. Similarly, switching to autopilot control is not a solution if the primary navigation system is compromised; autopilot systems typically rely on the primary instruments and may not provide reliable guidance without them.