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 SD FUEL Page Intercell Transfer Valve Position Data
 Figure 006

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 SD FUEL Page Intercell Transfer Valve Position Data
 Figure 006A

R 1EFF : 401-499, 1 28-15-00Page 12 1 1 Aug 01/05 1 1 1CES 1 During flight, the main fuel pumps (Ref. 28-21-00) supply the fuel from the inner cells to the engines. When one of the two low level sensors 15QJ1/15QJ2 (Ref. 28-46-00) becomes dry, the FLSCU will send an open signal to the two actuators 9QP and 10QP. When one of the two low level sensors 16QJ1/16QJ2 (Ref. 28-46-00) becomes dry, the FLSCU will send an open signal to the two actuators 11QP and 12QP. When open, the intercell transfer valves will stay open until the next refuel operation, when they will be closed by a signal from the FQIC. During a refuel using battery power, the intercell transfer valves are not energized and will not operate. If the intercell valves are in the open position, they will not close and it is not possible to refuel to maximum capacity. During a refuel using APU or External power the intercell transfer valves are energized and it is possible to refuel to maximum capacity.

 B. Indication The position of the intercell transfer valves is shown on the ECAM SD FUEL page. If specified failures occur in the intercell transfer system:
 -the ECAM SD FUEL page is shown
 -a warning is shown on the ECAM EWD
 -an audible warning occurs in the cockpit
 -
the MASTER CAUT light, on the cockpit glareshield panel, comes on. If the two intercell transfer valves in a wing tank fail to open when commanded:

 -
the Fuel Quantity Indication (FQI) (Ref. 28-42-00) for the related outer cell goes amber in color

 -
the FQI for the related outer cell is shown boxed. This is to indicate that the outer cell fuel is not available

 -
the Fuel On Board (FOB) FQI on the SD FUEL page is shown amber and boxed. This is to indicate that the FOB is not fully usable.

 -
the FOB FQI on the ECAM EWD is shown amber and half boxed. This is to indicate that the FOB is not fully usable.

 8. Test____ The intercell transfer valves are tested during the FLSCU BITE test (Ref. 28-46-00). The test results are shown (on the ground) on the Multi-purpose Control and Display Units (MCDUs) (Ref. 22-82-00).
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____________________________________
 TASK 28-15-00-710-002
 Operational Check of Individual Transfer Valves to Ensure Valve Shaft Rotates Valve to Open Position
 WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
 -
THE FLIGHT CONTROLS

 -
THE FLIGHT CONTROL SURFACES

 -
THE LANDING GEAR AND THE RELATED DOORS

 -COMPONENTS THAT MOVE.
 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 1. Reason for the Job
__________________
 Refer to the MPD TASK: 281500-01
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control 28-00-00-910-001 Fuel Safety Procedures 28-25-00-650-001 Pressure Defuel 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure
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 3. Job Set-up
__________ Subtask 28-15-00-941-053
 A. Safety Precautions
 WARNING : OBEY THE FUEL SAFETY PROCEDURES.

_______
 (1) You must obey the fuel safety procedures (Ref. TASK 28-00-00-910-001) when you do work on the fuel system.
 (2) Put the safety barriers in position. Subtask 28-15-00-860-053
 B. Aircraft Maintenance Configuration
 (1)
 Refuel each wing to a minimum of 1800 kg (3968.3196 lb) (Ref. TASK 12-11-28-650-003). Make sure that each wing tank outer cell is full of fuel.

 (2)
　
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