What should a pilot do in the event of an alternator failure?

In the event of an alternator failure, the pilot's priority is to manage the electrical system effectively to ensure the aircraft can be safely operated until landing. Maintaining minimal load on the battery is essential because, without the alternator to recharge it, the battery's power will gradually deplete. By minimizing electrical usage, the pilot can extend the available power for critical systems, allowing more time to safely navigate to an airport for landing.

Continuing to fly normally without addressing the alternator failure could lead to a sudden loss of electrical power, which might compromise flight instruments and navigation systems. Increasing battery load would accelerate the depletion of the battery, putting the aircraft at risk of total electrical failure. Turning off all electrical equipment may not be practical since important systems required for flying could be lost, which would jeopardize safety.

Therefore, the recommended action is to minimize the load on the battery and prepare for landing as soon as possible, ensuring that essential systems remain operational. This approach balances safety with the electrical limitations presented by the alternator failure.