How do you verify the electrical system's generator limits before flight?

How do you verify the electrical system's generator limits before flight?

• A. Check the AFM for generator load limits and bus configuration under electrical system limitations.
• B. Verify generator limits using in-flight readouts only
• C. Rely on memory from previous flights
• D. Check only the cabin altimeter

Answer: (A)

The key idea is that generator limits and how power is distributed are specified in the AFM under electrical system limitations. Before flight you verify by checking the AFM for the exact generator load limits and the current bus configuration. This tells you the maximum electrical load each generator can handle and which buses will be powered under the existing configuration, ensuring you won’t overload a generator or mis-successfully distribute power during start, operations, or abnormal conditions. Relying on in-flight readouts alone won’t establish the allowable limits before flight, and memory isn’t a reliable way to confirm current limits, since configurations and limits can vary with aircraft setup and updates. The cabin altimeter is unrelated to generator limits, so it doesn’t contribute to verifying electrical capacity.

The key idea is that generator limits and how power is distributed are specified in the AFM under electrical system limitations. Before flight you verify by checking the AFM for the exact generator load limits and the current bus configuration. This tells you the maximum electrical load each generator can handle and which buses will be powered under the existing configuration, ensuring you won’t overload a generator or mis-successfully distribute power during start, operations, or abnormal conditions.

Relying on in-flight readouts alone won’t establish the allowable limits before flight, and memory isn’t a reliable way to confirm current limits, since configurations and limits can vary with aircraft setup and updates. The cabin altimeter is unrelated to generator limits, so it doesn’t contribute to verifying electrical capacity.