1EFF : 301-399, 1 28-42-46Page 408 1 1 May 01/04 1 1 1CES 1 Subtask 28-42-46-865-052

 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1QT, 2QT, 8QT.
 Subtask 28-42-46-740-050
 E. Test
 (1) Do a Fuel Quantity Indicating System (FQIS) BITE test (Ref. TASK 28-42-00-740-001).
 5. Close-up
________ Subtask 28-42-46-650-051
 A. Fuel Configuration
 (1) Refuel, defuel or transfer fuel as necessary (Ref. TASK 12-11-28-650-003), (Ref. TASK 28-25-00-650-001) or (Ref. TASK 28-25-00-869-001).
 Subtask 28-42-46-942-050
 B. Removal of Equipment
 (1)
 Remove the safety barriers.

 (2)
 Remove the warning notice(s).

 (3)
 Remove the access platform(s).

 (4)
 Remove the ground support and maintenance equipment, the special and standard tools and all other items.

 1EFF : 301-399, 1 28-42-46Page 409 1 1 May 01/04 1 1 1CES 1 ULTRACOMP - CENTER TANK (50QT) - REMOVAL/INSTALLATION

_____________________________________________________
 TASK 28-42-47-000-001
 Removal of the Ultracomp (50QT)
 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__________________ Self Explanatory
 2. Job Set-up Information______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific blanking caps No specific circuit breaker(s) safety clip(s) No specific safety barriers No specific warning notice No specific access platform 1.0 m (3 ft. 3 in.)
 1EFF : 301-399, 1 28-42-47Page 401 1 1 May 01/04 1 1 1CES 1

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank 28-10-00-910-002 Access to the Fuel Tanks and the Work Areas 28-25-00-650-001 Pressure Defuel 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
 Center Tank 32-12-00-010-001 Open the Main Gear Doors for Access 57-17-11-000-001 Removal of the Covers 147AZ (148AZ) 28-42-47-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 28-42-47-941-051
 A. Safety Precautions WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
 (1)
 You must obey the fuel safety procedures (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.

 (2)
 Put the safety barriers in position.

 (3)
 Put a warning notice in position to tell persons not to operate the MLG doors.

 Subtask 28-42-47-650-050
 B. Fuel Configuration
 (1)
 Defuel the center tank (Ref. TASK 28-25-00-650-001).

 (2)
 Drain the remaining fuel from the center tank (Ref. TASK 28-25-00-650-003).

 1EFF : 301-399, 1 28-42-47Page 402 1 1 May 01/04 1 1 1CES 1 Subtask 28-42-47-865-050

 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/FQI/CHAN/1 1QT A13 121VU FUEL/FQI/CHANNEL/1 AND 2 8QT L26 121VU FUEL/FQI/CHAN/2 2QT M27
 Subtask 28-42-47-010-051
 D. Get Access
 (1)
 Open the LH MLG door (Ref. TASK 32-12-00-010-001).

 (2)
 Make sure that the GROUND LOCK SLEEVE is installed on the LH MLG door actuating-cylinder.

 (3)
 Put the access platform in position below the access panel 147AZ.

 (4)
 Remove the access panel 147AZ, (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001).

 4. Procedure
_________ (Ref. Fig. 401/TASK 28-42-47-991-001) Subtask 28-42-47-020-050
 A. Removal of the Ultracomp (50QT)
 (1)
 Remove the nuts (6), (7), (8), (10) and (11) and the washers (4), (5), (9), (12) and (13).

 (2)
 Remove the connectors of the electrical cables (1), (2), (3), (14) and (15) from the ultracomp (19).
　
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