How do you manually transfer fuel from a heavy wing to a light wing?

• A. Open both wing fuel valves
• B. Turn the fuel pump ON for the heavier wing and monitor gauges for movement
• C. Disable the automatic balance
• D. Turn the emergency fuel switch to ON

Answer: (B)

To move fuel from the heavier wing to the lighter wing, use the transfer pump on the heavier wing. Turning that pump ON pushes fuel through the crossfeed to the lighter wing, and you watch the fuel gauges to confirm movement and restore balance. This direct pump-based crossfeed is the deliberate manual method for balancing fuel.

Opening both wing valves alone won’t initiate the transfer and could just feed fuel normally without achieving the intended crosswing balance. Disabling automatic balance isn’t needed for a controlled manual transfer and could disrupt other fuel-management protections. The emergency fuel switch activates an alternate, backup supply and isn’t used for routine crosswing transfer.