3. Job Set-up
__________
Subtask 57-17-11-941-051
A. Aircraft Maintenance Configuration
(1)
Make sure that the access platform is in position.
(2)
Make sure that the main landing gear door is open (Ref. TASK 32-12-00-010-001).
(3)
Make sure that the fuel safety procedures have been obeyed (Ref. TASK 28-00-00-910-001) , (Ref. TASK 28-10-00-910-001).
(4)
Make sure that the center tank is defueled (Ref. TASK 28-25-00-650-001) or the fuel is moved into a different tank (Ref. TASK 28-25-00-869-001).
(5)
Make sure that the remaining fuel is drained (Ref. TASK 28-25-00-650-003).
Subtask 57-17-11-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FUEL/X FEED/VALVE/MOT1 2QE A12 121VU FUEL/RFL/DFL/SPLY 2QU L24 121VU FUEL/RFL/DFL/XFR/DEFUEL/VALVE 1QU L23
R 121VU FUEL/L WING TK/PUMP2 SPLY 7QA N26 121VU FUEL/L WING TK/PUMP1 SPLY 1QA N23 121VU FUEL/R WING TK/PUMP2 SPLY 8QA Q26 121VU FUEL/R WING TK/PUMP1 SPLY 2QA Q23
4. Procedure
_________
Subtask 57-17-11-914-051
A. Preparation for the Installation of the Access Cover
(1)
Clean the contact surface of the seal on the access cover (1) with CLEANING AGENTS (Material No. 11-003) and with lint free cloth.
(2)
Put a new seal (2) in position with SEALANTS (Material No. 09-026).
(3)
Clean the surface around the seal (2) with CLEANING AGENTS (Material No. 11-003) to remove the excess of sealant.
Subtask 57-17-11-210-055
B. Bonding Strip Integrity Check
(1) Do an inspection of the bonding strips in the center wing box. Make sure that they are:
-correctly installed,
-
not corroded,
-
not damaged.
NOTE : If necessary, replace the bonding strips (Ref. TASK 20-28-00-
____ 912-002) or (Ref. TASK 20-28-00-912-004).
Subtask 57-17-11-420-050
C. Installation of the Access Cover
(Ref. Fig. 401/TASK 57-17-11-991-001)
(1)
Put the access cover (1) in position on the frame. NOTE : Hold the access cover 147AZ (148AZ) in position when you
____
install the fasteners.
(2)
Install the washers (8),the washers (7),and the screws (6).
(3)
TORQUE the screws (6) to between 0.8 and 0.9 m.daN (70.79 and 79.64 lbf.in).
NOTE : You must do the electrical bonding when you install the
____ bonding strip (5) (Ref. TASK 20-28-00-912-004).
(4)
Install the bonding strip (5), the washer (4) and the bolt (3).
(5)
TORQUE the bolt (3) to between 0.38 and 0.42 m.daN (33.62 and 37.16 lbf.in).
Subtask 57-17-11-865-052
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit
breaker(s): R 2QE, 2QA, 8QA, 1QA, 7QA, 1QU, 2QU
Subtask 57-17-11-740-050
R E. BITE Test
(1) Do a BITE test of the FQI system (Ref. TASK 28-42-00-740-001).
(2) Do a BITE test of the FLSS system (Ref. TASK 28-46-00-740-001).
NOTE : Those tests are only applicable if you do a maintenance work____ in the center wing-box area.
Subtask 57-17-11-650-051
R F. Fueling
(1) Fill the center tank to the maximum level (Ref. TASK 12-11-28-650-003)
Subtask 57-17-11-210-050
R G. Necessary Maintenance Procedure after Major Tank Repair
(1) Do any necessary maintenance procedure after a major tank repair.
NOTE : After major tank repair, refer to MPD 731000 latest revision____ for additional information.
Subtask 57-17-11-210-052
R H. Leak Inspection
(1) Make a visual inspection to make sure that there are no leaks at the access cover 147AZ (148AZ).
5. Close-up________
Subtask 57-17-11-410-050
A. Close Access
(1) Close the main doors of the main gear (Ref. TASK 32-12-00-410-001)
(2) Make sure that the work area is clean and clear of tool(s) and other items.
(3) Remove the access platform(s).
TASK 57-17-11-000-002 Removal of the Access Door at RIB1 WARNING : MAKE SURE THAT YOU HAVE THE CORRECT FIRE FIGHTING EQUIPMENT
_______ AVAILABLE.
WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
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