Under normal engine running conditions, Gen 2 powers which of the following?

• A. Non-Essential Bus, Avionics 2 Bus, Main Bus, Cabin Bus, and Gen 2 Bus
• B. Essential Bus, Avionics 1 Bus
• C. Landing Gear, RH windshield de-ice
• D. Flaps, LH windshield de-ice

Answer: (A)

Gen 2 is responsible for powering the second engine-driven electrical system and its assigned loads. Under normal running, Gen 2 supplies the Non-Essential Bus, Avionics 2 Bus, Main Bus, Cabin Bus, and its own Gen 2 Bus. This keeps the critical systems on the Essential Bus and Avionics 1 on Gen 1, with power-sharing via the bus architecture so essential flight-critical equipment remains protected. The arrangement means Avionics 2 and most noncritical electrical needs run off Gen 2, while avionics 1 and the essential systems stay tied to Gen 1. If you look at the other options, they would imply Gen 2 directly powers loads that are not on its normal distribution (such as the essential systems or specific gear like landing gear or de-ice), which isn’t how the NGX electrical layout is designed to operate in normal conditions.