Under which condition does the FSC automatically transfer fuel from the center tank to the wing?

Under which condition does the FSC automatically transfer fuel from the center tank to the wing?

• A. Wing drops below 94% capacity
• B. Wing increases above 96% capacity
• C. Center tank pressure increases
• D. Engine oil temperature rises

Answer: (A)

The system uses fuel balancing logic: it keeps wing tanks from getting too low by borrowing fuel from the center tank when needed. The transfer happens automatically when the wing tank’s fuel level falls below a set minimum, which in this case is 94% of capacity. If there’s enough fuel in the center tank, the FSC will move fuel to the wing to bring that wing level back up toward the threshold. This helps ensure there’s a safe engine feed and maintains proper weight balance. If the wing is already around or above 96%, the system doesn’t transfer fuel. Center-tank pressure or engine oil temperature aren’t the triggers for this transfer.

The system uses fuel balancing logic: it keeps wing tanks from getting too low by borrowing fuel from the center tank when needed. The transfer happens automatically when the wing tank’s fuel level falls below a set minimum, which in this case is 94% of capacity. If there’s enough fuel in the center tank, the FSC will move fuel to the wing to bring that wing level back up toward the threshold. This helps ensure there’s a safe engine feed and maintains proper weight balance. If the wing is already around or above 96%, the system doesn’t transfer fuel. Center-tank pressure or engine oil temperature aren’t the triggers for this transfer.