DOC AIRBUS | AMM A320FInstallation of the Wing Tank Outer-Cell Group A Harness
TASK 28-42-43-400-003-A
Installation of the Wing Tank Outer-Cell Group A Harness
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 28-42-43-941-061-A ** ON A/C NOT FOR ALL
Subtask 28-42-43-410-057-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:18:10 UTC
Installation of the Wing Tank Outer-Cell Group A Harness
WARNING:
MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.
WARNING:
MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [15QT1] (HARNESS-CHAN A, L WING TK OUTR) | |
| 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB | |
| FOR [15QT2] (HARNESS-CHAN A, R WING TK OUTR) | |
| 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 1 | CABLE-TIES | AIPC 28-42-05-20-010 |
| 1 | CABLE-TIES | AIPC 28-42-85-21-010 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-11-28-650-003-A | Pressure Refuel with Automatic Control |
| 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 28-25-00-650-001-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 28-42-43-400-006-A | Installation of the Wing-Tank Inner-Cell Group A Harness |
| TASK 28-46-00-740-001-A | Functional (BITE) Test |
| TASK 57-27-11-000-002-A | Removal of the Access Panel |
| TASK 57-27-11-400-002-A | Installation of the Access Panel |
Subtask 28-42-43-941-061-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(2) Make sure that the SAFETY BARRIER(S) are in position.
Subtask 28-42-43-860-054-A ** ON A/C NOT FOR ALL 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 (Ref. AMM TASK 28-10-00-910-001) when you do work in a fuel tank. (2) Make sure that the SAFETY BARRIER(S) are in position.
B. Aircraft Maintenance Configuration
(1) Make sure that the applicable fuel tank is 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).
(3) Make sure that the access platform is below the applicable zone 540(640).
(4) Make sure that the applicable access panels are removed (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-27-11-000-002).
(a) FOR [15QT1] (HARNESS-CHAN A, L WING TK OUTR)
remove 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB
(b) FOR [15QT2] (HARNESS-CHAN A, R WING TK OUTR)
remove 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB.
Subtask 28-42-43-865-057-A ** ON A/C NOT FOR ALL (1) Make sure that the applicable fuel tank is 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).
(3) Make sure that the access platform is below the applicable zone 540(640).
(4) Make sure that the applicable access panels are removed (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-27-11-000-002).
(a) FOR [15QT1] (HARNESS-CHAN A, L WING TK OUTR)
remove 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB
(b) FOR [15QT2] (HARNESS-CHAN A, R WING TK OUTR)
remove 640JB, 640KB, 640LB, 640MB, 640NB, 640PB, 640QB.
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FUEL/FQI/CHAN/1 | 1QT | A13 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND | 32QA | R26 |
| 121VU | FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND | 31QA | R25 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | FUEL/FQI/CHANNEL/1 AND 2 | 8QT | L26 |
| 121VU | FUEL/HI/LVL/SPLY | 1QJ | L25 |
| 121VU | FUEL/FQI/CHAN/2 | 2QT | M27 |
| 121VU | FUEL/PUMPS/2/R CTL AND L IND | 10QA | R29 |
| 121VU | FUEL/PUMPS/1/L CTL AND R IND | 3QA | R23 |
WARNING:
MAKE SURE THAT ALL CABLES IN FUEL TANKS ARE CORRECTLY SUPPORTED (BY CLIPS AND OTHER SUPPORTS).
IF CLIPS OR SUPPORTS ARE MISSING OR DAMAGED, YOU MUST REPLACE THEM.
WARNING:
DO NOT REPAIR CABLES THAT ARE IN FUEL TANKS. DO NOT MAKE IN-LINE SPLICES. IF A CABLE IS DEFECTIVE, YOU MUST REPLACE THE FULL CABLE ASSEMBLY.
WARNING:
MAKE SURE THAT THE INSTALLATION AND ROUTING OF ALL ELECTRICAL CABLES AGREE WITH THE REQUIREMENTS OF THE ELECTRICAL STANDARD PRACTICES MANUAL.
Subtask 28-42-43-420-096-A ** ON A/C NOT FOR ALL A. Preparation for Installation
(1) Clean the component interfaces and the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Get access through the opening 540KB(640KB) to RIB15.
(5) Identify and attach the end of the applicable string to the cables for the fuel probe 33QT1(33QT2).
(6) Identify and attach the end of the applicable string to the cables for the sensor 30QJ1(30QJ2).
(7) Put TAPE - SELF-AMALGAMATING around the cable ends of the harness 15QT1(15QT2). This will help to let it move more easily through the conduit.
Subtask 28-42-43-420-076-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Get access through the opening 540KB(640KB) to RIB15.
(5) Identify and attach the end of the applicable string to the cables for the fuel probe 33QT1(33QT2).
(6) Identify and attach the end of the applicable string to the cables for the sensor 30QJ1(30QJ2).
(7) Put TAPE - SELF-AMALGAMATING around the cable ends of the harness 15QT1(15QT2). This will help to let it move more easily through the conduit.
B. Installation of the Wing Tank Outer-Cell Group A Harness 15QT1 (15QT2)
(1) Get access through the opening 540LB(640LB) to RIB16 and find the string at the end of the conduit.
(2) Use the string to carefully pull the harness 15QT1(15QT2) through the conduit, until the cables come into view.
(3) Remove and discard the string and the tape from the harness.
(4) Get access through the opening 540LB(640LB) to RIB16 and find the cord at the end of the conduit.
(5) Use the string to carefully pull the harness 15QT1(15QT2) through the conduit, until the cables come into view.
(6) Remove and discard the string and the tape from the harness.
(7) Identify the cable ends for the fuel probe 33QT1(33QT2).
(8) Use a crimping tool to crimp the correct color terminal connectors (2) to the color identified wires (Ref. WL 204400).
(9) Connect the terminal connectors (2) to the terminal block of the fuel probe 33QT1(33QT2).
(10) Put the cable for the fuel probe 33QT1(33QT2) in position.
(11) Attach the electrical harness 15QT1(15QT2) to the fuel probe 33QT1(33QT2) body and the structure with the AIPC 28-42-05-20-010 CABLE-TIES (1) or AIPC 28-42-85-21-010 CABLE-TIES (1).
(12) Get access through the opening 540NB(640NB) to RIB18 and find the string at the end of the conduit.
(13) Use the string to carefully pull the harness 15QT1(15QT2) through the conduit, until the ends of the harness come into view.
(14) Remove and discard the string and the tape from the harness.
Subtask 28-42-43-420-078-A ** ON A/C NOT FOR ALL (1) Get access through the opening 540LB(640LB) to RIB16 and find the string at the end of the conduit.
(2) Use the string to carefully pull the harness 15QT1(15QT2) through the conduit, until the cables come into view.
(3) Remove and discard the string and the tape from the harness.
(4) Get access through the opening 540LB(640LB) to RIB16 and find the cord at the end of the conduit.
(5) Use the string to carefully pull the harness 15QT1(15QT2) through the conduit, until the cables come into view.
(6) Remove and discard the string and the tape from the harness.
(7) Identify the cable ends for the fuel probe 33QT1(33QT2).
(8) Use a crimping tool to crimp the correct color terminal connectors (2) to the color identified wires (Ref. WL 204400).
(9) Connect the terminal connectors (2) to the terminal block of the fuel probe 33QT1(33QT2).
(10) Put the cable for the fuel probe 33QT1(33QT2) in position.
(11) Attach the electrical harness 15QT1(15QT2) to the fuel probe 33QT1(33QT2) body and the structure with the AIPC 28-42-05-20-010 CABLE-TIES (1) or AIPC 28-42-85-21-010 CABLE-TIES (1).
(12) Get access through the opening 540NB(640NB) to RIB18 and find the string at the end of the conduit.
(13) Use the string to carefully pull the harness 15QT1(15QT2) through the conduit, until the ends of the harness come into view.
(14) Remove and discard the string and the tape from the harness.
C. Continue with the Installation Procedure
(1) Identify the cable ends for the sensor 30QJ1(30QJ2).
(2) Connect the cable to the sensor 30QJ1(30QJ2) with the screws (20) and (23).
Electrical Harness 13QT1(13QT2) and 14QT1(14QT2) at RIBS 6, 13 and 15 and at the Rear Spar - Detail and Location ** ON A/C NOT FOR ALL
Electrical Harness 13QT1(13QT2) and 14QT1(14QT2) at RIBS 2, 2/3, 6/7 and 9 - Location and Detail ** ON A/C NOT FOR ALL
(3) TORQUE the screw (20) to between 0.226 and 0.204 m.daN (20.00 and 18.05 lbf.in ) 
.
(4) TORQUE the screw (23) to between 0.124 and 0.102 m.daN (10.97 and 9.03 lbf.in ).
(5) Put the cable in position in the clamp (22) with the screws (21).
(6) TORQUE the screws (21) to between 0.067 and 0.034 m.daN (5.93 and 3.01 lbf.in ).
(7) Put the cable for the sensor 30QJ1(30QJ2) in position.
(8) Make a coil of the unwanted cable and attach the harness 15QT1(15QT2) to the structure with the AIPC 28-42-05-20-010 CABLE-TIES (1) or AIPC 28-42-85-21-010 CABLE-TIES (1).
(9) Remove and discard the string and the tape from the harness.
(10) Get access through the opening 540KB(640KB) to RIB15 and find the plug connector (33).
(11) Install the anti-rotation plate (44) (Ref. AMM TASK 28-42-43-400-006).
(12) Remove the blanking caps and connect the plug connector (33) to the connector 4045VC1(4045VC2) (34).
Subtask 28-42-43-865-058-A ** ON A/C NOT FOR ALL (1) Identify the cable ends for the sensor 30QJ1(30QJ2).
(2) Connect the cable to the sensor 30QJ1(30QJ2) with the screws (20) and (23).
Electrical Harness 13QT1(13QT2) and 14QT1(14QT2) at RIBS 6, 13 and 15 and at the Rear Spar - Detail and Location ** ON A/C NOT FOR ALL Electrical Harness 13QT1(13QT2) and 14QT1(14QT2) at RIBS 2, 2/3, 6/7 and 9 - Location and Detail ** ON A/C NOT FOR ALL . (4) TORQUE the screw (23) to between 0.124 and 0.102 m.daN (10.97 and 9.03 lbf.in )
. (5) Put the cable in position in the clamp (22) with the screws (21).
(6) TORQUE the screws (21) to between 0.067 and 0.034 m.daN (5.93 and 3.01 lbf.in )
. (7) Put the cable for the sensor 30QJ1(30QJ2) in position.
(8) Make a coil of the unwanted cable and attach the harness 15QT1(15QT2) to the structure with the AIPC 28-42-05-20-010 CABLE-TIES (1) or AIPC 28-42-85-21-010 CABLE-TIES (1).
(9) Remove and discard the string and the tape from the harness.
(10) Get access through the opening 540KB(640KB) to RIB15 and find the plug connector (33).
(11) Install the anti-rotation plate (44) (Ref. AMM TASK 28-42-43-400-006).
(12) Remove the blanking caps and connect the plug connector (33) to the connector 4045VC1(4045VC2) (34).
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 28-42-43-740-053-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FUEL/FQI/CHAN/1 | 1QT | A13 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND | 32QA | R26 |
| 121VU | FUEL/CTR TK/PUMPS1 AND 2/CTL AND IND | 31QA | R25 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | FUEL/FQI/CHANNEL/1 AND 2 | 8QT | L26 |
| 121VU | FUEL/HI/LVL/SPLY | 1QJ | L25 |
| 121VU | FUEL/FQI/CHAN/2 | 2QT | M27 |
| 121VU | FUEL/PUMPS/2/R CTL AND L IND | 10QA | R29 |
| 121VU | FUEL/PUMPS/1/L CTL AND R IND | 3QA | R23 |
E. 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-tank level-sensing system (Ref. AMM TASK 28-46-00-740-001).
5. Close-up(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-tank level-sensing system (Ref. AMM TASK 28-46-00-740-001).
Subtask 28-42-43-410-057-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable access panels (Ref. AMM TASK 57-27-11-400-002):
(a) FOR [15QT1] (HARNESS-CHAN A, L WING TK OUTR)
install 540JB 540KB 540LB 540MB 540NB 540PB 540QB
(b) FOR [15QT2] (HARNESS-CHAN A, R WING TK OUTR)
install 640JB 640KB 640LB 640MB 640NB 640PB 640QB.
Subtask 28-42-43-650-056-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable access panels (Ref. AMM TASK 57-27-11-400-002):
(a) FOR [15QT1] (HARNESS-CHAN A, L WING TK OUTR)
install 540JB 540KB 540LB 540MB 540NB 540PB 540QB
(b) FOR [15QT2] (HARNESS-CHAN A, R WING TK OUTR)
install 640JB 640KB 640LB 640MB 640NB 640PB 640QB.
B. Fuel Configuration
(1) Refuel, defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).
Subtask 28-42-43-942-055-A ** ON A/C NOT FOR ALL (1) Refuel, defuel or transfer fuel as necessary (Ref. AMM TASK 12-11-28-650-003), (Ref. AMM TASK 28-25-00-650-001) or (Ref. AMM TASK 28-25-00-869-001).
C. 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.
(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.