(f)  
The values must be the same with a tolerance of |50 pounds (|20 kilograms).

 F. Put the Airplane Back to Its Usual Condition
 S 415-049-003
 (1)  Close the access door for the refuel control panel (P15).
 S 095-050-003
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE
_______ THE LE FLAP SAFETY LOCKS. THE LE FLAPS CAN MOVE QUICKLY IF YOU DO NOT REMOVE THE SAFETY LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2) Remove the locks on the leading edge flaps (AMM 27-81-00/201).
 S 865-064-003
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAPS. THE FLAPS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (3)  
Retract the leading edge flaps (AMM 27-81-00/201).

 S 865-052-003

 (4)  
Remove the electrical power, if it is not necessary for other tasks (AMM 24-22-00/201).

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 AIRPLANES WITH ANALOG FUEL QUANTITY ú  28-41-00
 INDICATORS ú CONFIG 3 ú 01A Page 521 (BARFIELD SYSTEM TESTER) ú Nov 12/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 FUEL QUANTITY INDICATING SYSTEM - INSPECTION/CHECK
__________________________________________________
 1.  General_______
 A.  This procedure has one task. The task is to compare these two
 quantities:

 (1)
The quantity of fuel shown on the refuel quantity indicators

 (2)
The quantity of fuel measured with the fuel measuring sticks.

 TASK 28-41-00-726-001
 2.  FQIS Comparison Check_____________________
 A.  References
 (1)  
12-11-00/301, Fuel Servicing

 (2)  
28-41-00/501, Fuel Quantity Indicating System

 B.  Access
 (1)  
Location Zone
 402 Right Wing Outboard Leading Edge

 (2)  
Access Panels
 6540 Refueling Station Access Door

 C.  Procedure
 S 976-002
 (1)  
Measure the fuel quantity in each tank with the fuel measuring sticks (Ref 12-11-00/301).

 S 016-003

 (2)  
Open the access door for the refuel station (P15).

 S 976-004

 (3)  
Compare these two quantities:

 (a)  
The fuel quantity that you measured with the fuel measuring sticks

 (b)  
The fuel quantity shown on the refuel quantity indicator.

 (c)  
Make sure the two quantities are the same with a tolerance of |400 pounds (|200 kilograms).

 (d)  
If the two quantities do not agree with the correct tolerance, do this task: "System Adjustment - Fuel Quantity Indicating System" (AMM 28-41-00/501).

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 28-41-00
 ALL  ú ú 02 Page 601 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (4)  S 656-006Use this Task: Refuel Operation When the Fuel Quantity Indicating System does not Operate (AMM 12-11-00/301), to put a known quantity of fuel in the center tank.
 (5)  S 976-007Make sure the known quantity that is put in the center tank and the fuel quantity on the center tank refuel indicator agree with a tolerance of | 400 pounds ( | 200 kilograms). (a) If the two quantities do not agree with the correct tolerance, do this Task: System Adjustment - Fuel Quantity Indicating System (AMM 28-41-00/501).
 (6)  S 416-005Close the access door for the refuel station (P15).

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 28-41-00
 ALL  ú ú 02 Page 602 ú Mar 12/00
　
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