How is fuel manually transferred?

Fuel is manually transferred in the aircraft by selecting the X FLOW AUTO OVERRIDE to MAN and activating the pump. This method allows the crew to take control of the fuel transfer process rather than relying on the automatic system, which is typically designed to operate based on pre-set thresholds and conditions.

When the X FLOW AUTO OVERRIDE is set to MAN, it signals that the automatic transfer system is disabled, enabling the crew to operate the fuel pumps manually. Activating the pump thereafter initiates the fuel flow from one tank to another, allowing for controlled management of fuel distribution within the aircraft to ensure balanced weight and optimal performance.

The other options do not provide a viable method for manual fuel transfer. Switching the X FLOW AUTO OVERRIDE to OFF disconnects the automatic system but does not facilitate a manual mode. The ground service panel is used primarily for servicing the aircraft on the ground rather than for manual fuel transfer during flight operations, and automatic transfer based on fuel level detection does not involve manual intervention.