(3)
Before you begin the fuel transfer operation, make sure there is sufficient space in the tank that receives the fuel. You can drain the remaining fuel through the sump drain valves.
(4)
When you move fuel from one tank to a different tank, monitor the fuel quantity limits for each tank. If you put too much fuel in a tank, unwanted fuel will flow out through the vent system.
(5)
You must obey the limits shown in AMM 10-11-03/201, when you use the tail support stanchion in high winds.
B.
References
(1)
AMM 12-11-01/301, Servicing - Fuel
(2)
AMM 07-11-08/201, Cargo and Fuel Loading Support
(3)
AMM 10-11-03/201, Parking (high wind)
(4)
AMM 20-41-01/201, Static Grounding
(5)
AMM 24-22-00/201, Manual Control
(6)
AMM 27-51-00/201, Trailing Edge Flap System
(7)
AMM 27-81-00/201, Leading Edge Flap System
(8)
AMM 28-15-00/201, Center Wing Tank Scavenge System
(9)
AMM 28-31-04/401, Fuel Jettison Valve Actuator
(10)
AMM 32-00-30/201, Landing Gear Door Locks
C.
Equipment
(1)
702800-2 - Drain Tool Assembly, APCO, Whittier, CA
(2)
Container(s) - to collect fuel and of these capacities:
(a)
Reserve tanks - 5 U.S. gallons (20 liters)
(b)
Outboard mains - 35 U.S. gallons (135 liters)
(c)
Inboard mains - 25 U.S. gallons (95 liters)
(d)
Center wing tank - 125 U.S. gallons (475 liters)
(3)
Location Zones
521 Leading Edge, Front Spar to Rear Spar, Left
621 Leading Edge, Front Spar to Rear Spar, Right
(4)
Access Panels
521BB Fueling Receptacle Access Panel
521CB Fueling Control Panel Access Panel
621BB Fueling Receptacle Access Panel
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
D. Fuel Transfer Precautions
S 652-371
(1)
Obey these precautions during a fuel transfer operation:
(a)
Maintain the airplane CG per the weight and balance manual.
(b)
Plan the fuel transfer sequence to make sure the airplane CG is within limits per the weight and balance manual.
(c)
Make sure there is sufficient fuel capacity in the fuel tank(s) that will receive the transferred fuel.
(d)
If the planned fuel transfer operation will cause the fuel load in the left and right wing to be unequal, then do this task: Lateral Fuel Imbalance Limits.
E.
Prepare for the Fuel Transfer Operation
S 482-340
WARNING: DO THE PROCEDURE IN AMM 32-00-30/201 TO INSTALL THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Install the door locks for the wing and body landing gear
(AMM 32-00-30/201).
S 862-341
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2) Make sure persons and equipment are clear of the leading and trailing edge flaps.
S 482-342
WARNING: DO THE PROCEDURE IN AMM 27-81-00/201 TO DEACTIVATE THE LEADING
_______ EDGE FLAPS. ACCIDENTAL OPERATION OF THE FLAPS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3) Do the deactivation procedure for leading edge flaps
(AMM 27-81-00/201).
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