If a circuit breaker trips, what action should be taken?

When a circuit breaker trips, the appropriate action is to call the flight deck. This is essential because a tripped circuit breaker indicates a potential electrical issue that may affect the aircraft's systems. By notifying the flight crew, they can assess the situation, determine if there are any immediate safety concerns, and take appropriate measures for the safe operation of the aircraft.

The flight crew has the expertise and authority to make decisions regarding system status and any necessary procedures that may follow. Addressing the issue promptly is crucial to ensure safety and prevent further complications that could arise from an unresolved electrical fault. This response highlights the importance of communication and collaboration between ground personnel and flight operations in maintaining aircraft safety.