(d)  
Fuel System Card File serviceable (AMM 28-22-16/401).

 (e)  
Intergrated Display System (IDS) serviceable
 (AMM 31-61-00/501).

 (f)  
Airplane must be in ground mode (AMM 32-09-02/201).

 (g)  
CDU installed (AMM 34-61-02/401).

 (h)  
Central Maintenance Computer (CMC) serviceable

 (AMM 45-10-00/501).Prepare for the Test
 S 865-063
 (1)  Make sure the airplane is in the ground mode (the airplane is not held up by jacks and the targets are not installed) (AMM 32-09-02/201).
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747-400 MAINTENANCE MANUAL
 S 865-002
 (2)  
Supply electrical power (AMM 24-22-00/201).

 S 655-314

 (3)  
Do these steps to do a complete ground test of the densitometers and compensators:

 (a)  
Make sure the fuel tanks contain this minimum quantity of fuel: (enough fuel to cover the densitometers and compensators) 1) Main Tanks 1 and 4 - 324 Gallons (1227 Liters) 2) Main Tanks 2 and 3 - 107 Gallons (405 Liters) 3) Center Wing Tank - 1412 Gallons (5345 Liters) 4) Reserve Tank 2 and 3: - 46 Gallons (175 liters)

 (Compensator only)
 S 865-003
 (4)  
Make sure these circuit breakers are closed:

 (a)  
On the main power distribution panel, P6:
 1) 6D05, FUEL QTY 1
 2) 6D06, FUEL QTY 2
 3) 6F05, FUEL SYS MGMT CARD A
 4) 6F06, FUEL SYS MGMT CH 1
 5) 6F07, FUEL SYS MGMT CARD B
 6) 6F08, FUEL SYS MGMT CH 2

 (b)  
On the DC power distribution panel, P180:
 1) 180M8, FUELING VALVE 2
 2) 180M9, FUELING PWR - HOT BAT
 3) 180C25, FUELING LTS PANEL
 4) 180C26, FUELING LTS RECP
 5) 180H17, FUEL SYS EICAS INTFC CONT

 (c)  
On the left power distribution center, P414:
 1) 414F17, FUELING VALVE
 2) 414F22, FUELING PWR

 S 865-149
 (5)  
Prepare the CDU for the (FQIS) ground test:

 (a)  
Push the MENU key on the CDU to show the MENU.

 (b)  
Push the line select key (LSK) that is adjacent to <CMC to show the CMC MENU.

 (c)  
If <RETURN shows after you push the LSK, push the LSK that is adjacent to <RETURN until you see the CMC MENU.

 (d)  
Push the LSK that is adjacent to <GROUND TESTS to show the GROUND TESTS menu.

 (e)  
Push the NEXT PAGE key until you find <28 FUEL.

 (f)  
Push the LSK that is adjacent to <28 FUEL to show the GROUND TESTS menu for the fuel quantity indicating system.

 (g)  
Push the NEXT PAGE key until you find <FUEL QUANTITY IND.

 NOTE: If INHIBITED shows above <FUEL QUANTITY IND, the
____
 test will not operate.

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747-400 MAINTENANCE MANUAL
 (h)  If INHIBITED shows above <FUEL QUANTITY IND: 1) Push the LSK that is adjacent to the test prompt. 2) Do the steps shown on the CDU. 3) Push the LSK that is adjacent to <RETURN to show the ground
 test menu again.
 F.  Fuel Quantity Indication System Ground Test
 S 745-150
 (1)  
Push the LSK that is adjacent to <FUEL QUANTITY IND.

 S 715-169

 (2)  
When the TEST PRECONDITIONS page shows, this note will show on the precondition screen:

 "NOTE: REFUELING STOPS WHILE TEST IS IN PROGRESS."
 S 745-307
 (3)  Push the LSK that is adjacent to START TEST>.
 NOTE: IN PROGRESS shows during the test.
____
 S 745-151
　
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