If a circuit breaker pops, who should be notified immediately?

• A. Captain
• B. First Officer
• C. Maintenance
• D. Flight Attendant

Answer: (A)

When a circuit breaker pops, it signals an electrical fault that could affect essential systems, so the Captain must be notified immediately. The Captain is the person in charge of the flight and has the authority to assess the situation, follow abnormal procedures, and decide whether to continue, divert, or declare an emergency. The First Officer can help and will relay information, but the immediate notification should go to the Captain so the proper decision and coordination with ATC and maintenance can start right away. Maintenance is typically involved once the situation is stabilized or after landing unless the aircraft’s MEL requires immediate attention, and Flight Attendants don’t need to be informed about cockpit electrical faults unless cabin systems are directly affected.