STAB Tank Pump Switches ( L, R )

• ON - Associated Stabilizer tank transfer/jettison pump operates and appropriate valves open when required by system logic when center tank fuel quantity decreases to approximately 80,00 pounds.
• PRESS Light - Indicates pump output pressure low.

CTR Tank Pump Switches ( L, R )

• ON - Turns on the associated override/jettison pump.>
• PRESS Light - Indicates pump output pressure low.

OVRD Pump Switches ( 2, 3 )

• ON - Associated override/jettison pump operates when required by system logic.
• PRESS Light - Indicates pump output pressure low. Override 2 and 3, center tank and stabilizer PRESS lights are inhibited with switch off.

MAIN Tank Pump Switches ( 1, 2, 3 & 4 )

• ON - Turns on the associated main tank boost pump.
• PRESS Light - Indicates pump output pressure low.

Valve Light ( Amber )
Indicates Valve position does not agree with system logic position.

Fuel X Feed Switches ( 2, 3 )

• Valve is open and bar is in view, when required by system logic.
• Valves close when airplane is on the ground and the Flaps are in the takeoff position; valves open in flight after flaps are retracted.

Fuel X Feed Switches ( 1, 4 )
Open and close the associated crossfeed valve. If bar is in view, valve is open.