During normal operation, which generator powers the left and right buses?

• A. Both generators power all buses.
• B. The left generator powers the left buses; the right generator powers the right buses.
• C. The left generator powers the right buses and the right powers the left.
• D. Each generator powers only its own engine systems.

Answer: (B)

Two engine-driven generators feed the aircraft’s electrical busses, with a split layout so each side stays independent. In normal operation, the left generator powers the left buses and the right generator powers the right buses. This arrangement keeps loads and voltage regulation on each side separate, improving stability and redundancy. A crossfeed or bus tie exists to share power if needed in abnormal conditions, but under normal operation it’s not used and each generator handles its own side.