W DOC AIRBUS | AMM A320F

Installation of the Access Panel

TASK 57-27-11-400-002-A
Installation of the Access Panel

WARNING: THIS PROCEDURE USES A FUEL SYSTEM ITEM THAT IS IN A CATEGORY KNOWN AS A CRITICAL DESIGN CONFIGURATION CONTROL LIMITATION (CDCCL). CDCCL IDENTIFIES AN ITEM THAT CAN BE THE SOURCE OF A POSSIBLE FUEL TANK IGNITION. YOU MUST KEEP ALL CDCCL ITEMS IN THE APPROVED CONFIGURATION. DAMAGE, WEAR OR CHANGES TO A CDCCL ITEM CAN CAUSE A POSSIBLE FUEL TANK EXPLOSION.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
ZONE: 540
ZONE: 550
ZONE: 640
ZONE: 650
1. Reason for the Job
To install the access panels 540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB, 640RB, 650AB, 650BB, 650CB, 650DB, 660AB.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific
AR
CONTAINER 20L (5 USGAL)
No specific
AR
SAFETY BARRIER(S)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 30 and 25 lbf.in (0.34 and 0.28 m.daN ) T
No specific
Torque wrench: range to between 80 and 70 lbf.in (0.90 and 0.79 m.daN ) T
No specific
Torque wrench: range to between 160 and 140 lbf.in (1.81 and 1.58 m.daN ) T
97A28002117002
1
TOOL-PURGING
98D27803500001
1
LOCKING TOOL ZERO POS
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.03FAB1)
Mineral Oil base Grease-- Vaseline or Petrolatum -
(Material No.06HAA1)
Coating Sealant-Fuel Tank Brushable -
(Material No.06LCG9)
Non Hardening Jointing Putty-Medium Temp. Area - -
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
540
FUEL TANK
550
VENT SURGE TANK
640
FUEL TANK
650
VENT SURGE TANK
540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB, 640RB, 650AB, 650BB, 650CB, 650DB, 660AB
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
7
SEALING RING
AIPC 28-12-45-01-070
1
SEALING RING
AIPC 28-12-46-01-010
3
SEALING RING
AIPC 28-12-46-02-010
5
SEALING RING
AIPC 28-12-47-01-010
1
SEALING RING
AIPC 57-27-11-03-010
2
SEALING RING
AIPC 57-27-11-03-010
1
SEALING RING
AIPC 57-27-11-03-030
2
SEALING RING
AIPC 57-27-11-03-030
3
SEALING RING
AIPC 57-27-11-04-010
4
SEALING RING
AIPC 57-27-11-04-010
2
SEALING RING
AIPC 57-27-11-04-030
4
SEALING RING
AIPC 57-27-11-04-030
4
SEALING RING
AIPC 57-27-11-05-030
6
SEALING RING
AIPC 57-27-11-06-010
8
SEALING RING
AIPC 57-27-11-08-010
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 12-11-28-650-003-A
Pressure Refuel with Automatic Control
TASK 20-28-00-912-802-A
Electrical Bonding - General Maintenance Procedure
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 28-10-00-910-001-A
Safety Procedures When You Do Work in a Fuel Tank
TASK 28-10-00-910-002-A
Access to the Fuel Tanks and the Work Areas
TASK 28-11-00-790-009-A
Leak Test of the Fuel Tanks - Without Fuel - Helium Procedure
TASK 28-12-41-400-001-A
Installation of the Overpressure Protector
TASK 28-12-45-400-002-A
Installation of the Panel Assembly
TASK 28-12-46-400-001-A
Installation of the Overpressure Protector Outlet
TASK 28-12-47-400-001-A
Installation of the NACA Vent Intake
TASK 28-18-00-200-002-A
Detailed Inspection of Tank Bonding Leads (SFAR88)
TASK 28-18-00-200-002-A-01
Detailed Inspection of Tank Bonding Leads (SFAR88)
TASK 28-25-00-650-001-A
Pressure Defuel
TASK 28-25-00-650-003-A
To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-650-003-A-01
To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-869-001-A
Fuel Transfer
TASK 28-42-00-740-001-A
Status Report (BITE)
TASK 28-46-00-740-001-A
Functional (BITE) Test
TASK 57-55-11-000-001-A
Removal of the Flap Track Fairings Nos. 2, 3 and 4
TASK 57-55-11-000-004-A
Removal of the Flap Track Fairings Nos. 2, 3 and 4
TASK 57-55-11-400-001-A
Installation of the Flap Track Fairings Nos. 2, 3 and 4
TASK 57-55-11-400-004-A
Installation of the Flap Track Fairings Nos. 2, 3 and 4
TASK 71-00-00-710-003-A
Engine Automatic Start
TASK 71-00-00-710-003-B
Engine Automatic Start
TASK 71-00-00-710-004-A
Engine Manual Start
TASK 71-00-00-710-004-B
Engine Manual Start
TASK 71-00-00-710-043-A
Normal Engine Automatic-Start Procedure
TASK 71-00-00-710-047-A
Normal Engine Manual-Start Procedure
TASK 71-00-00-860-822-A
Start the Engine (Normal Manual Start)
TASK 71-00-00-860-823-A
Start the Engine (Normal Automatic Start)
TASK 73-11-06-000-801-A
Removal of the Fuel Filter Element
TASK 73-11-06-400-801-A
Installation of the Fuel Filter Element
TASK 73-11-10-920-001-A
Remove, Inspect and Replace Fuel Filter Element
TASK 73-11-10-920-001-B
Remove, Inspect and Replace Fuel Filter Element
TASK 73-12-42-920-010-A
Remove, Inspect for Contamination and Replace Main Fuel Filter
F Access Panels - Rib 13 to the Closing Rib ** ON A/C NOT FOR ALL
F Access Panels - Rib 13 to the Closing Rib ** ON A/C NOT FOR ALL
F Access Panels - Rib 13 to the Closing Rib, Bolt Removal/Tightening Sequence ** ON A/C NOT FOR ALL
F Access Panels - Rib 13 to the Closing Rib, Bolt Removal/Tightening Sequence ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 57-27-11-941-071-A
A. Safety Precautions
WARNING: BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.
   (1) You must obey the fuel safety procedures when you do work in a fuel tank, (Ref. AMM TASK 28-10-00-910-001) and (Ref. AMM TASK 28-10-00-910-002).
   (2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
   (3) Make sure that the WARNING NOTICE(S) are in position in the cockpit to tell persons not to operate the flaps or slats.
   (4) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS is correctly installed on the flap/slat control lever.
Subtask 57-27-11-860-064-A
B. Aircraft Maintenance Configuration
   (1) Make sure that the applicable fuel tank has been defueled (Ref. AMM TASK 28-25-00-650-001).
   (2) Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
Subtask 57-27-11-865-055-A
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFUEL/XFR VALVE1/WING/R2QPA11
49VUFUEL/XFR VALVE1/WING/L1QPA10
** ON A/C ALL
49VUFUEL/X FEED/VALVE/MOT12QEA12
** ON A/C NOT FOR ALL
121VUFUEL/CTR TK/PUMP2 SPLY30QAP26
121VUFUEL/CTR TK/PUMP1 SPLY29QAP23
** ON A/C NOT FOR ALL
121VUFUEL/RFL/DFL/SPLY2QUL24
121VUFUEL/RFL/DFL/XFR/DEFUEL/VALVE1QUL23
** ON A/C ALL
121VUFUEL/L WING TK/PUMP2 SPLY7QAN26
121VUFUEL/L WING TK/PUMP1 SPLY1QAN23
121VUFUEL/R WING TK/PUMP2 SPLY8QAQ26
121VUFUEL/R WING TK/PUMP1 SPLY2QAQ23
** ON A/C NOT FOR ALL
121VUFUEL/CTR TK/AUTO/CTL3QLR27
121VUFUEL/CTR TK/L&R XFR/CTL & IND2QLR26
121VUFUEL/CTR TK/L&R XFR/CTL & IND1QLR25
** ON A/C NOT FOR ALL
121VUFUEL/RFL/DFL/SPLY2QUL23
121VUFUEL/RFL/DFL/XFR/DEFUEL/VALVE1QUL22
Subtask 57-27-11-010-062-B ** ON A/C NOT FOR ALL
D. Get Access
   (1) Make sure that the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position below the applicable access panel at zone 540(640).
   (2) Make sure that you removed the forward and aft fixed fairings from flap track No. 4 (Ref. AMM TASK 57-55-11-000-001):
   (3) For panel 540PB ( 640PB):
  • Make sure that you removed the bolts (13) and the flap-track fairing support-bracket (12).
Subtask 57-27-11-010-062-C ** ON A/C NOT FOR ALL
D. Get Access
   (1) Make sure that the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position below the applicable access panel, zone 540(640).
   (2) Make sure that the forward and aft fixed fairings of the flap track 4 have been removed (Ref. AMM TASK 57-55-11-000-004):
4. Procedure
Subtask 57-27-11-560-051-A
A. Preparation of a Component for Installation
   (1) Examine the applicable sealing ring (1) thru (8) for damage. If necessary remove and discard it.
   (2) Use a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean:
  • The groove in the access panel (11) for the applicable sealing ring (1) thru (8)
  • The interface of the access panel (11) and the wing bottom skin (9).
   (3) Examine for damage the interfaces of:
  • The access panel (11)
  • The wing bottom skin (9)
  • The bolt holes in the access panel (11).
Subtask 57-27-11-420-059-C ** ON A/C NOT FOR ALL
B. Preparation for Installation
   (1) For the panel 550CB( 650CB), make sure that the overpressure protector is installed (Ref. AMM TASK 28-12-41-400-001).
   (2) Apply a thin layer of Coating Sealant-Fuel Tank Brushable - (Material No.06HAA1) to the groove in the access panel (11) for the applicable sealing ring (1) thru (8).
   (3) While the sealant is wet, put the applicable sealing ring (1) thru (8) (flat edge down) in the groove in the access panel (11):
NOTE: Let the sealant dry for a minimum of 15 minutes before you install the panel.
   (4) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the mating face of the applicable sealing ring (1) thru (8).
   (5) Apply a thin layer of Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the bolts (10). Apply to the shank, the threads and below the head of each bolt (10).
Subtask 57-27-11-420-059-D ** ON A/C NOT FOR ALL
B. Preparation for Installation
   (1) For the panel 550CB( 650CB), make sure that the overpressure protector is installed (Ref. AMM TASK 28-12-41-400-001).
   (2) Apply a thin layer of Coating Sealant-Fuel Tank Brushable - (Material No.06HAA1) to the groove in the access panel (11) for the applicable sealing ring (1) thru (8).
   (3) While the sealant is wet, put the applicable sealing ring (1) thru (8) (flat edge down) in the groove in the access panel (11):
NOTE: Let the sealant dry for a minimum of 15 minutes before you install the panel.
   (4) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the mating face of the applicable sealing ring (1) thru (8).
   (5) Apply a thin layer of Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the bolts (10). Apply to the shank, the threads and below the head of each bolt (10).
Subtask 57-27-11-420-059-E ** ON A/C NOT FOR ALL
B. Preparation for Installation
   (1) For the panel 550CB( 650CB), make sure that the overpressure protector is installed (Ref. AMM TASK 28-12-41-400-001).
   (2) Apply a thin layer of Coating Sealant-Fuel Tank Brushable - (Material No.06HAA1) to the groove in the access panel (11) for the applicable sealing ring (1) thru (8).
   (3) While the sealant is wet, put the applicable sealing ring (1) thru (8) (flat edge down) in the groove in the access panel (11):
NOTE: Let the sealant dry for a minimum of 15 minutes before you install the panel.
   (4) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the mating face of the applicable sealing ring (1) thru (8).
   (5) Apply a thin layer of Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the bolts (10). Apply to the shank, the threads and below the head of each bolt (10).
Subtask 57-27-11-420-059-F ** ON A/C NOT FOR ALL
B. Preparation for Installation
   (1) For the panel 550CB( 650CB), make sure that the overpressure protector is installed (Ref. AMM TASK 28-12-41-400-001).
   (2) Apply a thin layer of Coating Sealant-Fuel Tank Brushable - (Material No.06HAA1) to the groove in the access panel (11) for the applicable sealing ring (1) thru (8).
   (3) While the sealant is wet, put the applicable sealing ring (1) thru (8) (flat edge down) in the groove in the access panel (11):
NOTE: Let the sealant dry for a minimum of 15 minutes before you install the panel.
   (4) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the mating face of the applicable sealing ring (1) thru (8).
   (5) Apply a thin layer of Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the bolts (10). Apply to the shank, the threads and below the head of each bolt (10).
Subtask 57-27-11-420-052-A
C. Installation of the Access Panel
   (1) Make sure that there are no unwanted objects and materials, tools or other equipment in the wing.
   (2) Make sure that all of the bonding leads (Ref. AMM TASK 28-18-00-200-002):
  • Are in position and connected correctly
  • Are not damaged or broken
  • Show no sign of corrosion.
   (3) Make sure that the work area is clean and clear of tools and equipment before you install the access panel (11).
CAUTION: YOU MUST FOLLOW THESE STEPS OF THE PROCEDURE ACCURATELY. THIS WILL PREVENT DAMAGE TO THE PARTS.
   (4) For the access panel 550AB ( 650AB), refer to (Ref. AMM TASK 28-12-47-400-001).
NOTE: If the overpressure protector has been removed from the access panel 550CB ( 650CB), refer to (Ref. AMM TASK 28-12-41-400-001).
   (5) Remove the identification label from the access panel (11).
   (6) Install the access panel (11).
   (7) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the fastener bolt (10) holes.
   (8) Put the access panel (11) in position on the wing.
CAUTION: YOU MUST REMOVE AND INSTALL THE BOLTS IN THE SPECIFIED SEQUENCE. THIS WILL PREVENT DAMAGE TO THE ACCESS PANEL.
   (9) Install the bolts (10) and loosely engage the threads.
NOTE: The access panels (11) do not have the same quantity of the bolts (10), but the sequence is the same.
   (10) Not applicable
CAUTION: YOU MUST TIGHTEN AND TORQUE THE BOLTS IN THE CORRECT SEQUENCE TO PREVENT DAMAGE TO THE COMPONENTS.
   (11) TORQUE the bolts (10) in the sequence A thru AF, as follows:
F Access Panels - Rib 13 to the Closing Rib, Bolt Removal/Tightening Sequence ** ON A/C NOT FOR ALL
F Access Panels - Rib 13 to the Closing Rib, Bolt Removal/Tightening Sequence ** ON A/C NOT FOR ALL
     (a) For the access panels 540HB ( 640HB), 540JB ( 640JB), 540KB ( 640KB), 540LB ( 640LB):
     (b) For the access panels 540MB ( 640MB), 540NB ( 640NB), 540PB ( 640PB), 540QB ( 640QB), 540RB ( 640RB), 550BB ( 650BB), 550CB ( 650CB), 550DB ( 650DB), 560AB ( 660AB):
   (12) Make sure that the maximum in-to-wind or out-of-wind dimension (between the access panel (11) and the wing skin (9)) is between:
   (13) Make sure that the dimension 'Y' is between 0.5 mm (0.0197 in.) and 2.5 mm (0.0984 in.).
   (14) Make sure that the access panel (11) is correctly bonded to the wing bottom skin (9):
WARNING: THIS INSTRUCTION IS APPLICABLE TO A CRITICAL DESIGN CONFIGURATION CONTROL LIMITATION (CDCCL) ITEM. CAREFULLY OBEY ALL GIVEN INSTRUCTIONS WHEN YOU DO THIS STEP. IF YOU DO NOT OBEY THESE INSTRUCTIONS, A DANGEROUS CONDITION CAN OCCUR THAT CAN CAUSE A POSSIBLE FUEL TANK EXPLOSION.
     (a) Do a bonding test (Ref. AMM TASK 20-28-00-912-802). Make sure that the electrical resistance is less than 10 milliohms between the access panel (11) and the wing bottom skin (9).
Subtask 57-27-11-865-053-A
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFUEL/XFR VALVE1/WING/R2QPA11
49VUFUEL/XFR VALVE1/WING/L1QPA10
** ON A/C ALL
49VUFUEL/X FEED/VALVE/MOT12QEA12
** ON A/C NOT FOR ALL
121VUFUEL/CTR TK/PUMP2 SPLY30QAP26
121VUFUEL/CTR TK/PUMP1 SPLY29QAP23
** ON A/C NOT FOR ALL
121VUFUEL/RFL/DFL/SPLY2QUL24
121VUFUEL/RFL/DFL/XFR/DEFUEL/VALVE1QUL23
** ON A/C ALL
121VUFUEL/L WING TK/PUMP2 SPLY7QAN26
121VUFUEL/L WING TK/PUMP1 SPLY1QAN23
121VUFUEL/R WING TK/PUMP2 SPLY8QAQ26
121VUFUEL/R WING TK/PUMP1 SPLY2QAQ23
** ON A/C NOT FOR ALL
121VUFUEL/RFL/DFL/SPLY2QUL23
121VUFUEL/RFL/DFL/XFR/DEFUEL/VALVE1QUL22
Subtask 57-27-11-860-061-A ** ON A/C NOT FOR ALL
E. Aircraft Configuration
   (1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
   (2) For the access panel 540HB ( 640HB):
   (3) For the access panel 540JB ( 640JB) (Ref. AMM TASK 12-11-28-650-003):
  • Refuel the applicable wing tank to 6300 kg (13889.1186 lb)
    or
  • Refuel the applicable wing tank to high level cut-off.
   (4) For the access panels 540KB ( 640KB) thru 540RB ( 640RB):
  • Refuel the applicable wing tank outer cell to 700 kg (1543.2354 lb)
    or
  • Refuel the applicable wing tank to high level cut-off (Ref. AMM TASK 12-11-28-650-003).
   (5) For the access panel 550AB ( 650AB):
   (6) For the access panels 550BB ( 650BB) and 550DB ( 650DB):
   (7) For the access panel 550CB ( 650CB):
Subtask 57-27-11-860-062-A ** ON A/C NOT FOR ALL
F. Preparation for Test
   (1) For the access panel 540HB ( 640HB), refer to (Ref. AMM TASK 28-12-46-400-001).
   (2) For the access panel 550AB ( 650AB), refer to (Ref. AMM TASK 28-12-47-400-001).
   (3) If the access panel 550BB ( 650BB) has been removed, do the steps that follow:
     (a) Refuel the applicable wing tank fully and keep the fuel tanker connected to the aircraft (Ref. AMM TASK 12-11-28-650-003).
     (b) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable water drain valve 21QM(22QM). Use the 97A28002117002 TOOL-PURGING to open the water drain valve (Ref. AMM TASK 28-25-00-650-003).
     (c) On panel 800VU:
  • Put the MODE SELECT switch to REFUEL
  • Put the applicable wing tank REFUEL VALVES switch to the OPEN position
  • Put the opposite wing tank REFUEL VALVES switch to the SHUT position
  • Put the TEST switch to the HI LVL position and hold it there
  • Make sure that the applicable HI LVL light goes out.
     (d) Set the fuel tanker to its lowest flow-rate and pressure. Make sure that the fuel flows into the vent surge tank and out of the water drain valve 21QM(22QM) (Ref. AMM TASK 28-25-00-650-003).
     (e) On panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the SHUT position
  • Make sure that the fuel-flow from the water drain valve decreases and stops.
     (f) Close the water drain valve (Ref. AMM TASK 28-25-00-650-003) and remove the 97A28002117002 TOOL-PURGING.
     (g) On the panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the OPEN position
  • Make sure that the opposite wing tank REFUEL VALVES switch is in the SHUT position
  • Hold the TEST switch in the HI LVL position.
     (h) Set the fuel tanker to its lowest flow rate and pressure. Let 100 l (26.4170 USgal) of fuel flow into the vent surge tank.
     (i) On the panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the SHUT position.
     (j) Stop the operation of the fuel tanker.
     (k) On the panel 800VU:
  • Release the TEST switch from the HI LVL position
  • Make sure that the applicable HI LVL light comes on
  • Put all of the REFUEL VALVES switches to the NORM and guarded position
  • Put the MODE SELECT switch to the OFF and guarded position.
   (4) For the access panel 550CB ( 650CB), refer to (Ref. AMM TASK 28-12-45-400-002).
   (5) If the access panels 550CB ( 650CB) thru to 550DB ( 650DB) have been removed, do the steps that follow:
     (a) Refuel the applicable wing tank fully and keep the fuel tanker connected to the aircraft (Ref. AMM TASK 12-11-28-650-003).
     (b) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable water drain valve 21QM(22QM). Use the 97A28002117002 TOOL-PURGING to open the water drain valve (Ref. AMM TASK 28-25-00-650-003).
     (c) On panel 800VU:
  • Put the MODE SELECT switch to REFUEL
  • Put the applicable wing tank REFUEL VALVES switch to the OPEN position
  • Put the opposite wing tank REFUEL VALVES switch to the SHUT position
  • Put the TEST switch to the HI LVL position and hold it there
  • Make sure that the applicable HI LVL light goes out.
     (d) Set the fuel tanker to its lowest flow-rate and pressure. Make sure that the fuel flows into the vent surge tank and out of the water drain valve 21QM(22QM) (Ref. AMM TASK 28-25-00-650-003).
     (e) On panel 800VU:
  • put the applicable wing tank REFUEL VALVES switch to the SHUT position
  • make sure that the fuel-flow from the water drain valve decreases and stops.
     (f) Close the water drain valve (Ref. AMM TASK 28-25-00-650-003) and remove the 97A28002117002 TOOL-PURGING.
     (g) On the panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the OPEN position
  • Make sure that the opposite wing tank REFUEL VALVES switch is in the SHUT position
  • Hold the TEST switch in the HI LVL position.
     (h) Set the fuel tanker to its lowest flow rate and pressure. Let 150 l (39.6255 USgal) of fuel flow into the vent surge tank.
     (i) On the panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the SHUT position.
     (j) Stop the operation of the fuel tanker.
     (k) On the panel 800VU:
  • Release the TEST switch from the HI LVL position
  • Make sure that the applicable HI LVL light comes on
  • Put all of the REFUEL VALVES switches to the NORM and guarded position
  • Put the MODE SELECTOR switch to the OFF and guarded position.
Subtask 57-27-11-860-061-B ** ON A/C NOT FOR ALL
G. Aircraft Configuration
   (1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
   (2) For the access panel 540HB ( 640HB) (Ref. AMM TASK 12-11-28-650-003):
  • Refuel the applicable wing tank to 5900 kg (13007.2698 lb)
    or
  • Refuel the applicable wing tank to high level cut-off.
   (3) For the access panel 540JB ( 640JB) (Ref. AMM TASK 12-11-28-650-003):
  • Refuel the applicable wing tank to 6300 kg (13889.1186 lb)
    or
  • Refuel the applicable wing tank to high level cut-off.
   (4) For the access panels 540KB ( 640KB) thru 540RB ( 640RB):
   (5) For the access panel 550AB ( 650AB):
   (6) For the access panels 550BB ( 650BB) and 550DB ( 650DB):
   (7) For the access panel 550CB ( 650CB):
Subtask 57-27-11-860-062-B ** ON A/C NOT FOR ALL
H. Preparation for Test
   (1) For the access panel 540PB ( 640PB), refer to (Ref. AMM TASK 28-12-46-400-001).
   (2) For the access panel 550AB ( 650AB), refer to (Ref. AMM TASK 28-12-47-400-001).
   (3) If the access panel 550BB ( 650BB) has been removed, do the steps that follow:
     (a) Refuel the applicable wing tank fully and keep the fuel tanker connected to the aircraft (Ref. AMM TASK 12-11-28-650-003).
     (b) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable water drain valve 21QM(22QM). Use the 97A28002117002 TOOL-PURGING to open the water drain valve (Ref. AMM TASK 28-25-00-650-003).
     (c) On panel 800VU:
  • Put the MODE SELECT switch to REFUEL
  • Put the applicable wing tank REFUEL VALVES switch to the OPEN position
  • Put the opposite wing tank REFUEL VALVES switch to the SHUT position
  • Put the TEST switch to the HI LVL position and hold it there
  • Make sure that the applicable HI LVL light goes out.
     (d) Set the fuel tanker to its lowest flow-rate and pressure. Make sure that the fuel flows into the vent surge tank and out of the water drain valve 21QM(22QM) (Ref. AMM TASK 28-25-00-650-003).
     (e) On panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the SHUT position
  • Make sure that the fuel-flow from the water drain valve decreases and stops.
     (f) Close the water drain valve (Ref. AMM TASK 28-25-00-650-003) and remove the 97A28002117002 TOOL-PURGING.
     (g) On the panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the OPEN position
  • Make sure that the opposite wing tank REFUEL VALVES switch is in the SHUT position
  • Hold the TEST switch in the HI LVL position.
     (h) Set the fuel tanker to its lowest flow rate and pressure. Let 100 l (26.4170 USgal) of fuel flow into the vent surge tank.
     (i) On the panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the SHUT position.
     (j) Stop the operation of the fuel tanker.
     (k) On the panel 800VU:
  • Release the TEST switch from the HI LVL position
  • Make sure that the applicable HI LVL light comes on
  • Put all of the REFUEL VALVES switches to the NORM and guarded position
  • Put the MODE SELECT switch to the OFF and guarded position.
   (4) For the access panel 550CB ( 650CB), refer to (Ref. AMM TASK 28-12-45-400-002).
   (5) If the access panels 550CB ( 650CB) thru to 550DB ( 650DB) have been removed, do the steps that follow:
     (a) Refuel the applicable wing tank fully and keep the fuel tanker connected to the aircraft (Ref. AMM TASK 12-11-28-650-003).
     (b) Put a CONTAINER 20L (5 USGAL) on the access platform below the applicable water drain valve 21QM(22QM). Use the 97A28002117002 TOOL-PURGING to open the water drain valve (Ref. AMM TASK 28-25-00-650-003).
     (c) On panel 800VU:
  • Put the MODE SELECT switch to REFUEL
  • Put the applicable wing tank REFUEL VALVES switch to the OPEN position
  • Put the opposite wing tank REFUEL VALVES switch to the SHUT position
  • Put the TEST switch to the HI LVL position and hold it there
  • Make sure that the applicable HI LVL light goes out.
     (d) Set the fuel tanker to its lowest flow-rate and pressure. Make sure that the fuel flows into the vent surge tank and out of the water drain valve 21QM(22QM) (Ref. AMM TASK 28-25-00-650-003).
     (e) On panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the SHUT position
  • Make sure that the fuel-flow from the water drain valve decreases and stops.
     (f) Close the water drain valve (Ref. AMM TASK 28-25-00-650-003) and remove the 97A28002117002 TOOL-PURGING.
     (g) On the panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the OPEN position
  • Make sure that the opposite wing tank REFUEL VALVES switch is in the SHUT position
  • Hold the TEST switch in the HI LVL position.
     (h) Set the fuel tanker to its lowest flow rate and pressure. Let 150 l (39.6255 USgal) of fuel flow into the vent surge tank.
     (i) On the panel 800VU:
  • Put the applicable wing tank REFUEL VALVES switch to the SHUT position.
     (j) Stop the operation of the fuel tanker.
     (k) On the panel 800VU:
  • Release the TEST switch from the HI LVL position
  • Make sure that the applicable HI LVL light comes on
  • Put all of the REFUEL VALVES switches to the NORM and guarded position
  • Put the MODE SELECTOR switch to the OFF and guarded position.
Subtask 57-27-11-790-051-A
I. Test
   (1) Do a status report (BITE) of the fuel quantity indicating system (Ref. AMM TASK 28-42-00-740-001).
   (2) Do a functional (BITE) test of the fuel quantity sensors (Ref. AMM TASK 28-46-00-740-001).
   (3) Examine the access panel you have installed for leaks.
Subtask 57-27-11-790-059-A
J. Leak Test
   (1) Do the leak test of the fuel tanks (Ref. AMM TASK 28-11-00-790-009).
NOTE: This leak test is an alternative to the leak test from paragraph G.
5. Close-up
Subtask 57-27-11-410-051-B ** ON A/C NOT FOR ALL
A. Close Access
   (1) For panel 540PB ( 640PB):
     (a) Put the flap-track fairing support-bracket (12) in position on flap track No. 4.
     (b) Install and tighten the bolts (13) on the flap-track fairing support-bracket (12).
   (2) For panel 540NB ( 640NB) or 540PB ( 640PB):
Subtask 57-27-11-410-051-C ** ON A/C NOT FOR ALL
A. Close Access
   (1) For panels 540NB ( 640NB) or 540PB ( 640PB):
Subtask 57-27-11-960-051-B ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) If you have done a fuel tank repair and there is a risk of unwanted material remaining in the tank:
     (a) Start the engine and let it operate to flush the contamination from the fuel tank (Ref. AMM TASK 71-00-00-710-003) or (Ref. AMM TASK 71-00-00-710-004).
     (b) Replace the fuel filter (Ref. AMM TASK 73-11-10-920-001) at scheduled intervals, refer to (Ref. MPD 730000-C4-1) for scheduled replacement intervals.
   (2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 57-27-11-960-051-C ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) If you have done a fuel tank repair and there is a risk of unwanted material remaining in the tank:
     (a) Start the engine and let it operate to flush the contamination from the fuel tank (Ref. AMM TASK 71-00-00-710-043) or (Ref. AMM TASK 71-00-00-710-047).
     (b) Replace the fuel filter (Ref. AMM TASK 73-12-42-920-010) at scheduled intervals, refer to (Ref. MPD 731000-I1-1) for scheduled replacement intervals.
NOTE: For aircraft operating to the standards for ETOPS, refer also to the latest revision of the CMP 28-2-0000-002 for additional requirements (Ref. MPD 282100-03-1).
   (2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 57-27-11-960-051-D ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) If you have done a fuel tank repair and there is a risk of unwanted material remaining in the tank:
     (a) Start the engine and let it operate to flush the contamination from the fuel tank (Ref. AMM TASK 71-00-00-710-003) or (Ref. AMM TASK 71-00-00-710-004).
     (b) Replace the fuel filter (Ref. AMM TASK 73-11-10-920-001) at scheduled intervals, refer to (Ref. MPD 730000-C4-1) for scheduled replacement intervals.
   (2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 57-27-11-960-051-F ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) If you did a fuel tank repair and there is a risk of unwanted material remaining in the tank, do the steps that follow:
     (a) Start the engine and let it operate to flush the contamination from the fuel tank (Ref. AMM TASK 71-00-00-860-823) or (Ref. AMM TASK 71-00-00-860-822).
     (b) If necessary, replace the fuel filter cartridge (Ref. AMM TASK 73-11-06-000-801) and (Ref. AMM TASK 73-11-06-400-801).
NOTE: Airbus recommends to replace the fuel filter cartridge at 500FH and 1500FH after delivery, after you do work on the tank or as described in (Ref. AMM TASK 73-11-06-000-801) and (Ref. AMM TASK 73-11-06-400-801).
   (2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 57-27-11-860-063-A
C. Aircraft Configuration
   (1) For the access panels 550BB ( 650BB) and 550DB ( 650DB):
NOTE: While the wing tank pump operates, its related jet pump defuels the vent surge tank.
   (2) Refuel (Ref. AMM TASK 12-11-28-650-003), defuel (Ref. AMM TASK 28-25-00-650-001) or transfer fuel (Ref. AMM TASK 28-25-00-869-001) as necessary.
   (3) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
Subtask 57-27-11-942-050-A
D. Removal of Equipment
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the safety barriers.
   (3) Remove the access platform(s).
   (4) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.
   (5) Remove the WARNING NOTICE(S).
   (6) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 02:11:53 UTC
"Aviabrain" 2025