DOC AIRBUS | AMM A320FInstallation of the Pylon-to-Wing Forward Attach-Fitting at RIB5
TASK 54-51-17-400-804-A
Installation of the Pylon-to-Wing Forward Attach-Fitting at RIB5
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 54-51-17-941-081-A ** ON A/C NOT FOR ALL
Subtask 54-51-17-420-086-A ** ON A/C NOT FOR ALL
Subtask 54-51-17-420-089-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:38:28 UTC
Installation of the Pylon-to-Wing Forward Attach-Fitting at RIB5
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:
DO NOT GET FUEL IN YOUR MOUTH, EYES OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM THE FUEL. KEEP THE FUEL AWAY FROM SPARKS, FLAME AND HEAT. FUEL IS POISONOUS AND FLAMMABLE, WHICH CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
BEFORE YOU INSTALL/REMOVE THE GSE-TOOL, READ THE INSTRUCTIONS IN THE APPLICABLE GSE INSTRUCTION MANUAL. WHILE YOU OPERATE THIS TOOL, CAREFULLY OBEY THEM. IF YOU DO NOT OBEY THE INSTRUCTIONS, DAMAGE TO EQUIPMENT CAN OCCUR.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | AR | CONTAINER 3 L(3/4 USGAL) |
| No specific | Torque wrench: range to between 5 and 4 m.daN (36.87 and 29.50 lbf.ft )  | |
| 98D54403000000 | 1 | DUMMY SHACKLES-PYLON TO WING YOKES |
| 98D54403001000 | 1 | DUMMY SLEEVES-PYLON TO WING YOKES |
| 98D54403009000 | 1 | DYNAMOMETRIC ADAPTOR |
| 98D54503000001 | 1 | PYLON R/I WRENCH SET |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FAB1) | Mineral Oil base Grease-- Vaseline or Petrolatum - |
| (Material No.03GBC1) | Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14QDC1) | Wire-Locking Dia: 0.5 mm (0.020 inch) CRES - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 470 | ENGINE 1 AFT PYLON |
| 480 | ENGINE 2 AFT PYLON |
| 413DL, 413ET, 423ET, 424DR, 471AL, 471BL, 472AR, 481AL, 482AR, 482BR | |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL, 462AR | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 11 | O-RINGS | AIPC 28-21-86-01-100 |
| 21 | O-RINGS | AIPC 28-21-86-01-100 |
| 15 | RETAINING RINGS | AIPC 28-21-86-01-120 |
| 24 | RETAINING RINGS | AIPC 28-21-86-01-120 |
| 22 | O-RINGS | AIPC 28-21-86-01-140 |
| 26 | O-RINGS | AIPC 28-21-86-01-140 |
| 11 | O-RINGS | AIPC 28-21-86-02-100 |
| 21 | O-RINGS | AIPC 28-21-86-02-100 |
| 15 | RETAINING RINGS | AIPC 28-21-86-02-120 |
| 24 | RETAINING RINGS | AIPC 28-21-86-02-120 |
| 22 | O-RINGS | AIPC 28-21-86-02-140 |
| 26 | O-RINGS | AIPC 28-21-86-02-140 |
| 13 | COTTER PINS | AIPC 36-11-85-01-510 |
| 4 | COTTER PINS | AIPC 36-11-85-01-510 |
| 11 | COTTER PINS | AIPC 54-51-87-01-010 |
| 13 | NUTS | AIPC 54-51-87-01-030 |
| 14 | TAB WASHERS | AIPC 54-51-87-01-040 |
| 11 | COTTER PINS | AIPC 54-51-87-02-010 |
| 13 | NUTS | AIPC 54-51-87-02-030 |
| 14 | TAB WASHERS | AIPC 54-51-87-02-040 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 05-57-00-200-001-A | Aircraft Stability |
| TASK 05-57-00-200-001-B | Aircraft Stability |
| TASK 07-11-00-586-002-A | Lowering of the Aircraft for Maintenance Operations |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 28-00-00-910-001-A | Fuel Safety Procedures |
| TASK 28-16-42-400-001-A | Installation of the Fuel Recirculation Check-valve |
| TASK 54-53-11-000-804-A | Removal of the Pylon-to-Wing Access Panels and Doors |
| TASK 54-53-11-400-804-A | Installation of the Pylon-to-Wing Access Panels and Doors |
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 71-00-51-400-802-A | Installation of the Power Plant (Bootstrap Method) |
| TASK 71-00-51-400-802-A-01 | Installation of the Power Plant (JacXson Method) |
| TASK 71-13-10-400-801-A | Installation of the Left Engine Fan Cowl Door |
| TASK 71-13-20-400-801-A | Installation of the Right Fan Cowl Door |
| TASK 78-30-00-440-805-A | Reactivation of the Thrust Reverser System after Ground Maintenance |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| TASK 78-32-01-400-802-A | Installation of the Left Thrust Reverser Half - Engine 1 |
| TASK 78-32-02-400-802-A | Installation of the Right Thrust Reverser Half - Engine 1 |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| TASK 78-32-01-400-803-A | Installation of the Left Thrust Reverser Half - Engine 2 |
| TASK 78-32-02-400-803-A | Installation of the Right Thrust Reverser Half - Engine 2 |
Pylon-to-Wing Forward Attach-Fitting at RIB5Subtask 54-51-17-941-081-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
(2) Make sure that you obeyed the instructions of the fuel safety procedure (Ref. AMM TASK 28-00-00-910-001).
(3) Make sure that the aircraft is stable (Ref. AMM TASK 05-57-00-200-001).
Subtask 54-51-17-010-065-A ** ON A/C NOT FOR ALL (1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
(2) Make sure that you obeyed the instructions of the fuel safety procedure (Ref. AMM TASK 28-00-00-910-001).
(3) Make sure that the aircraft is stable (Ref. AMM TASK 05-57-00-200-001).
B. Removal of the Access Panels and Doors
(1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position:
(a) For the left pylon, in zone 470
(b) For the right pylon, in zone 480.
(2) Make sure that the pylon-to-wing access panels and doors are removed (Ref. AMM TASK 54-53-11-000-804):
(a) For the left pylon: 413ET 413DL 471AL 471BL 472AR
(b) For the right pylon: 423ET 424DR 481AL 482AR 482BR.
Subtask 54-51-17-160-055-A ** ON A/C NOT FOR ALL (1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position:
(a) For the left pylon, in zone 470
(b) For the right pylon, in zone 480.
(2) Make sure that the pylon-to-wing access panels and doors are removed (Ref. AMM TASK 54-53-11-000-804):
(a) For the left pylon: 413ET 413DL 471AL 471BL 472AR
(b) For the right pylon: 423ET 424DR 481AL 482AR 482BR.
C. Preparation before Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) If they are not sufficiently clean, clean the parts retained from the removed component with Non Aqueous Cleaner-General - - (Material No.08BAA9) and Textile-Lint free Cotton - (Material No.14SBA1) ,if necessary.
(3) Make sure that the nuts (13) are in the correct condition. If necessary, replace the AIPC 54-51-87-01-030 NUTS (13) (left) and AIPC 54-51-87-02-030 NUTS (13) (right).
4. Procedure(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) If they are not sufficiently clean, clean the parts retained from the removed component with Non Aqueous Cleaner-General - - (Material No.08BAA9) and Textile-Lint free Cotton - (Material No.14SBA1) ,if necessary.
(3) Make sure that the nuts (13) are in the correct condition. If necessary, replace the AIPC 54-51-87-01-030 NUTS (13) (left) and AIPC 54-51-87-02-030 NUTS (13) (right).
NOTE: If installed, it is necessary to remove the 98D54403000000 DUMMY SHACKLES-PYLON TO WING YOKES and the 98D54403001000 DUMMY SLEEVES-PYLON TO WING YOKES.
Subtask 54-51-17-420-086-A ** ON A/C NOT FOR ALL
A. Installation of the Pylon-to-Wing Forward Attach-Fitting at RIB5
(2) Put the shackles (17) in position.
(3) Install the sleeves (15). Install the top sleeve first.
(5) Install the nuts (13).
(6) Lock the sleeves (15) with a special wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(7) TORQUE the nuts (13) to between 5 and 4 m.daN (36.87 and 29.50 lbf.ft ). Use a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET and a torque wrench.
(8) Bend the tab washers (14) to safety the nuts (13).
(9) Install the fail-safe pins (16).
(10) Lock the fail-safe pins (16) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(11) Install the nuts (12) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(12) TORQUE the nuts (12) to between 5 and 4 m.daN (36.87 and 29.50 lbf.ft ).
(13) Safety the nuts (12) with new AIPC 54-51-87-01-010 COTTER PINS (11) (left) and new AIPC 54-51-87-02-010 COTTER PINS (11) (right).
Subtask 54-51-17-081-054-A ** ON A/C NOT FOR ALL CAUTION:
USE BULLET PINS WHEN YOU INSTALL THE SLEEVES. THIS IS TO PREVENT DAMAGE TO THE THREADS.
(1) Apply Synthetic Oil base Grease-General Purpose Lithium Thickened Low Temp. - (Material No.03GBC1) to the sleeves, the spigot and all the friction surfaces. (2) Put the shackles (17) in position.
(3) Install the sleeves (15). Install the top sleeve first.
NOTE: You can install the sleeves more easily if you change the force that the jack applies to the attach-fitting.
NOTE: For the top attachments, the nuts, the cotter pins and the lockwashers are installed in the outer side of the pylons (always symmetrically to the pylon centerline).
For the bottom attachments, the nuts, the cotter pins and the lockwashers are installed in the inner side of the pylons (always symmetrically to the pylon centerline).
(4) Install new AIPC 54-51-87-01-040 TAB WASHERS (14) (left) and new AIPC 54-51-87-02-040 TAB WASHERS (14) (right). For the bottom attachments, the nuts, the cotter pins and the lockwashers are installed in the inner side of the pylons (always symmetrically to the pylon centerline).
(5) Install the nuts (13).
(6) Lock the sleeves (15) with a special wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(7) TORQUE the nuts (13) to between 5 and 4 m.daN (36.87 and 29.50 lbf.ft )
. Use a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET and a torque wrench. (8) Bend the tab washers (14) to safety the nuts (13).
(9) Install the fail-safe pins (16).
(10) Lock the fail-safe pins (16) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(11) Install the nuts (12) with a pin wrench from the 98D54503000001 PYLON R/I WRENCH SET.
(12) TORQUE the nuts (12) to between 5 and 4 m.daN (36.87 and 29.50 lbf.ft )
. (13) Safety the nuts (12) with new AIPC 54-51-87-01-010 COTTER PINS (11) (left) and new AIPC 54-51-87-02-010 COTTER PINS (11) (right).
B. Removal of the Dynamometric Adaptor and Jack below the Attach-Fitting
(1) Release the force applied at RIB1 and lower the jack.
(2) Remove the 98D54403009000 DYNAMOMETRIC ADAPTOR.
(3) Remove the jack from below the attach-fitting at RIB1.
5. Close-up(1) Release the force applied at RIB1 and lower the jack.
(2) Remove the 98D54403009000 DYNAMOMETRIC ADAPTOR.
(3) Remove the jack from below the attach-fitting at RIB1.
Subtask 54-51-17-420-089-A ** ON A/C NOT FOR ALL
A. Connection of the Fuel/Defuel System Components
(2) Connect the fuel line coupling to its connection adjacent to RIB5 of the pylon box. To do this:
(a) Remove the blanking caps from the disconnected fuel pipe assemblies (30) and (31).
(b) Apply Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to:
(d) Install the pipe (20) on the fuel pipe assemblies (30) and (31). To do this:
1 Remove the PLUG-BLANKING from each disconnected line end.
2 Install the O-rings (21) and (22) on the pipe (20).
3 Install new AIPC 28-21-86-01-120 RETAINING RINGS (24) (left) and new AIPC 28-21-86-02-120 RETAINING RINGS (24) (right) on the pipe (20).
4 Install new AIPC 28-21-86-01-120 RETAINING RINGS (15) (left) and new AIPC 28-21-86-02-120 RETAINING RINGS (15) (right) on the fuel pipe assemblies (30) and (31).
5 Align the pipe (20) with the fuel pipe assemblies (30) and (31).
6 Make sure that clearance A1 between the fuel pipe assembly (30) and the pipe (20) is 5 +3 mm or -3 mm (0.1969 +0.1181 in. or -0.1181 in.).
7 Make sure that the clearance between the fuel pipe assembly (31) and the pipe (20) is 5 +3 mm or -3 mm (0.1969 +0.1181 in. or -0.1181 in.).
8 Install the nuts (14) and (23) on the pipe (20) and the fuel pipe assemblies (32) and (33).
9 Put and hold the connectors (25) in the correct position.
10 Tighten the nuts (14) and (23) with your hand.
14QDC1 Wire-Locking Dia: 0.5 mm (0.020 inch) CRES -
(f) Move the sleeves (27) down.
(g) Put the clamps (12) in position.
(h) Install the washers (28) and the bolts (29).
(i) Install the nuts (13) and tighten them.
(j) Install the clamps (16) on the pipe (20).
(k) Do the electrical bonding at the applicable location on the clamps (16) (Ref. AMM TASK 20-28-00-912-802).
(l) Put the bonding straps (17) in position.
(m) Install the bolts (18) on the clamps (16).
(n) Install the nuts (19) and tighten them.
(3) Connect the fuel recirculation check-valve to its connection adjacent to RIB7 of the pylon box (Ref. AMM TASK 28-16-42-400-001).
Subtask 54-51-17-420-090-A ** ON A/C NOT FOR ALL WARNING:
EXTREME CARE MUST BE EXERCISED WHEN INSTALLING THE O-RING SEALS. MISALIGNMENT CAN CAUSE DAMAGE WHICH CAN LEAD TO FUEL LEAKS.
(1) Make sure that a CONTAINER 3 L(3/4 USGAL) is in position below the connections. (2) Connect the fuel line coupling to its connection adjacent to RIB5 of the pylon box. To do this:
(a) Remove the blanking caps from the disconnected fuel pipe assemblies (30) and (31).
(b) Apply Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to:
- New AIPC 28-21-86-01-100 O-RINGS (11) (left) and new AIPC 28-21-86-02-100 O-RINGS (11) (right)
- New AIPC 28-21-86-01-140 O-RINGS (26) (left) and new AIPC 28-21-86-02-140 O-RINGS (26) (right)
- New AIPC 28-21-86-01-100 O-RINGS (21) (left) and new AIPC 28-21-86-02-100 O-RINGS (21) (right)
- New AIPC 28-21-86-01-140 O-RINGS (22) (left) and new AIPC 28-21-86-02-140 O-RINGS (22) (right).
(d) Install the pipe (20) on the fuel pipe assemblies (30) and (31). To do this:
1 Remove the PLUG-BLANKING from each disconnected line end.
2 Install the O-rings (21) and (22) on the pipe (20).
3 Install new AIPC 28-21-86-01-120 RETAINING RINGS (24) (left) and new AIPC 28-21-86-02-120 RETAINING RINGS (24) (right) on the pipe (20).
4 Install new AIPC 28-21-86-01-120 RETAINING RINGS (15) (left) and new AIPC 28-21-86-02-120 RETAINING RINGS (15) (right) on the fuel pipe assemblies (30) and (31).
5 Align the pipe (20) with the fuel pipe assemblies (30) and (31).
6 Make sure that clearance A1 between the fuel pipe assembly (30) and the pipe (20) is 5 +3 mm or -3 mm (0.1969 +0.1181 in. or -0.1181 in.).
7 Make sure that the clearance between the fuel pipe assembly (31) and the pipe (20) is 5 +3 mm or -3 mm (0.1969 +0.1181 in. or -0.1181 in.).
8 Install the nuts (14) and (23) on the pipe (20) and the fuel pipe assemblies (32) and (33).
9 Put and hold the connectors (25) in the correct position.
10 Tighten the nuts (14) and (23) with your hand.
WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(e) Safety the nuts (14) and (23) to the connectors (25) with the (f) Move the sleeves (27) down.
(g) Put the clamps (12) in position.
(h) Install the washers (28) and the bolts (29).
(i) Install the nuts (13) and tighten them.
(j) Install the clamps (16) on the pipe (20).
(k) Do the electrical bonding at the applicable location on the clamps (16) (Ref. AMM TASK 20-28-00-912-802).
(l) Put the bonding straps (17) in position.
(m) Install the bolts (18) on the clamps (16).
(n) Install the nuts (19) and tighten them.
(3) Connect the fuel recirculation check-valve to its connection adjacent to RIB7 of the pylon box (Ref. AMM TASK 28-16-42-400-001).
B. Installation of the Electrical Connectors and the Rods
(1) Put the rods (10) and (14) in position.
(2) Install the bolts (15).
(3) Install the washers (11) and the nuts (12).
(4) Install the sleeves (7) and the bolts (8).
(5) Install the washers (6) and the nuts (5).
(6) Tighten the nuts (12) and (5).
(7) Safety the nuts (12) and (5) with new AIPC 36-11-85-01-510 COTTER PINS (4) and AIPC 36-11-85-01-510 COTTER PINS (13).
(8) Install the clamps (1).
(9) Install the clamps (9) on the rod (10).
(10) Install the washers (2) and the bolts (3).
(11) Install the nuts (16) and tighten them.
(12) Remove the CAP-BLANKING from each electrical connector and receptacle.
(13) Make sure that all the electrical connections are clean and in the correct condition.
(14) Connect electrical connectors 6HA1-B (6HA2-B) (17) and 6HA1-A (6HA2-A) (18) to the temperature sensors.
Subtask 54-51-17-586-054-A ** ON A/C NOT FOR ALL Subtask 54-51-17-410-058-A ** ON A/C NOT FOR ALL (1) Put the rods (10) and (14) in position.
(2) Install the bolts (15).
(3) Install the washers (11) and the nuts (12).
(4) Install the sleeves (7) and the bolts (8).
(5) Install the washers (6) and the nuts (5).
(6) Tighten the nuts (12) and (5).
(7) Safety the nuts (12) and (5) with new AIPC 36-11-85-01-510 COTTER PINS (4) and AIPC 36-11-85-01-510 COTTER PINS (13).
(8) Install the clamps (1).
(9) Install the clamps (9) on the rod (10).
(10) Install the washers (2) and the bolts (3).
(11) Install the nuts (16) and tighten them.
(12) Remove the CAP-BLANKING from each electrical connector and receptacle.
(13) Make sure that all the electrical connections are clean and in the correct condition.
(14) Connect electrical connectors 6HA1-B (6HA2-B) (17) and 6HA1-A (6HA2-A) (18) to the temperature sensors.
D. Installation of the Access Panels and Doors
(1) Install the pylon-to-wing access panels and doors (Ref. AMM TASK 54-53-11-400-804):
(a) For the left pylon: 413ET 413DL 471AL 471BL 472AR
(b) For the right pylon: 423ET 424DR 481AL 482AR 482BR.
Subtask 54-51-17-420-087-A ** ON A/C NOT FOR ALL (1) Install the pylon-to-wing access panels and doors (Ref. AMM TASK 54-53-11-400-804):
(a) For the left pylon: 413ET 413DL 471AL 471BL 472AR
(b) For the right pylon: 423ET 424DR 481AL 482AR 482BR.
E. Installation of the Components
(1) Install the power plant (Ref. AMM TASK 71-00-51-400-802).
(2) Install the thrust reversers:
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL and 452AR (Ref. AMM TASK 78-32-01-400-802) and (Ref. AMM TASK 78-32-02-400-802)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL and 462AR (Ref. AMM TASK 78-32-01-400-803) and (Ref. AMM TASK 78-32-02-400-803).
(3) Install the fan cowl doors (Ref. AMM TASK 71-13-10-400-801) (Ref. AMM TASK 71-13-20-400-801):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR.
Subtask 54-51-17-440-061-A ** ON A/C NOT FOR ALL (1) Install the power plant (Ref. AMM TASK 71-00-51-400-802).
(2) Install the thrust reversers:
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL and 452AR (Ref. AMM TASK 78-32-01-400-802) and (Ref. AMM TASK 78-32-02-400-802)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL and 462AR (Ref. AMM TASK 78-32-01-400-803) and (Ref. AMM TASK 78-32-02-400-803).
(3) Install the fan cowl doors (Ref. AMM TASK 71-13-10-400-801) (Ref. AMM TASK 71-13-20-400-801):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR.
F. Reactivation of the Thrust Reverser
(1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 54-51-17-942-063-A ** ON A/C NOT FOR ALL (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-805).
G. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).