W DOC AIRBUS | AMM A320F

Installation of the Thermal Blankets between RIB1 and RIB5

TASK 54-51-61-400-802-A
Installation of the Thermal Blankets between RIB1 and 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.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 410
ZONE: 420
FIN: 4020KM1
FIN: 4020KM2
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ) T
No specific
Torque wrench: range to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
410
ENG 1 PYLON BOX AND FORWARD FAIRING
420
ENG 2 PYLON BOX AND FORWARD FAIRING
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR, 461AL, 462AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 26-12-16-400-804-A
Installation of the Pylon Fire-Detector Ramp-Assembly
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A
Closing of the Fan Cowl Doors
TASK 78-30-00-040-807-A
Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU)
TASK 78-30-00-440-807-A
Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU)
TASK 78-36-00-010-806-A
Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A
Closing of the Thrust Reverser Cowl Doors
F Thermal Blankets between RIB1 and RIB5
3. Job Set-up
Subtask 54-51-61-941-053-A
A. Safety Precautions
   (1) On the center pedestal, on ENG panel 115VU:
     (a) Make sure that the ENG/MODE selector switch is in the NORM position.
     (b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
     (c) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
Subtask 54-51-61-040-053-A
B. Deactivation of the Thrust Reverser
WARNING: MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.
   (1) Make sure that the thrust reverser is unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-807).
Subtask 54-51-61-010-054-A
C. Get access
   (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
   (2) Make sure that the thrust-reverser cowl doors are open (Ref. AMM TASK 78-36-00-010-806):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR.
   (3) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position:
     (a) For the left pylon, in zone 415
     (b) For the right pylon, in zone 425.
Subtask 54-51-61-110-051-A
D. Preparation for 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) .
   (3) Do an inspection of the component interfaces and the adjacent area.
4. Procedure
Subtask 54-51-61-420-051-A
A. Installation of the Thermal Blanket between RIB1 and RIB5
F Thermal Blankets between RIB1 and RIB5
   (1) Put and hold the thermal blankets (20), (23) and (24) in position.
   (2) Install the washers (21) and the bolts (22).
   (3) Tighten the bolts (22).
   (4) Install the pylon fire-detector ramp-assembly (Ref. AMM TASK 26-12-16-400-804).
   (5) Remove the blanking plugs from the disconnected pipe end.
   (6) Make sure that the pipe is clean and in the correct condition.
   (7) Install the engine fire-extinguishing pipe (8) to its connection. To do this:
     (a) Put and hold the engine fire-extinguishing pipe (8) in the correct position.
     (b) Make sure that the clamps (11) are in position.
     (c) Install the washers (9) and the bolts (10).
     (d) Tighten the bolts (10)
     (e) Connect the engine fire-extinguishing pipe (8) at applicable location.
     (f) Tighten the nut (7).
   (8) Remove the blanking plugs from the disconnected pipe end.
   (9) Make sure that the pipes are clean and in the correct condition.
   (10) When you connect the pipes, refer to the match marks made during the removal procedure.
   (11) Connect the pipes (2), (4), (6) and (12) on the left pylon. To do this:
     (a) Connect the pipe (4) at applicable location.
     (b) Tighten the nut (3).
     (c) Connect the pipe (12) at applicable location.
     (d) Triple TORQUE the nut (13) that connects the pipe (12) on the pylon as follows:
       1 TORQUE the nut (13) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
       2 Loosen the nut (13).
       3 TORQUE the nut (13) again to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
       4 Final TORQUE the nut (13) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
     (e) Connect the pipe (6) at the applicable location.
     (f) Triple TORQUE the nut (5) that connects the pipe (6) on the pylon as follows:
       1 TORQUE the nut (5) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ) T.
       2 Loosen the nut (5).
       3 TORQUE the nut (5) again to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ) T.
       4 Final TORQUE the nut (5) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ) T.
     (g) Connect the pipe (2) at applicable location.
     (h) Triple TORQUE the nut (1) that connects the pipe (2) on the pylon as follows:
       1 TORQUE the nut (1) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
       2 Loosen the nut (1).
       3 TORQUE the nut (1) again to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
       4 Final TORQUE the nut (1) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
   (12) Connect the pipes (15), (17) and (18) on the right pylon. To do this:
     (a) Connect the pipe (18) at applicable location.
     (b) Triple TORQUE the nut (19) that connects the pipe (18) on the pylon as follows:
       1 TORQUE the nut (19) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
       2 Loosen the nut (19).
       3 TORQUE the nut (19) again to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
       4 Final TORQUE the nut (19) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
     (c) Connect the pipe (17) at the applicable location.
     (d) Triple TORQUE the nut (16) that connects the pipe (17) on the pylon as follows:
       1 TORQUE the nut (16) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ) T.
       2 Loosen the nut (16).
       3 TORQUE the nut (16) again to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ) T.
       4 Final TORQUE the nut (16) to between 3.2 and 2.9 m.daN (23.60 and 21.39 lbf.ft ) T.
     (e) Connect the pipe (15) at applicable location.
     (f) Triple TORQUE the nut (14) that connects the pipe (15) on the pylon as follows:
       1 TORQUE the nut (14) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
       2 Loosen the nut (14).
       3 TORQUE the nut (14) again to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
       4 Final TORQUE the nut (14) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
Subtask 54-51-61-790-050-A
B. Leak Test
   (1) Do a check for leaks on the fuel systems.
   (2) Do a check of the pipes for leaks.
5. Close-up
Subtask 54-51-61-410-051-A
A. Close Access
   (1) Close the thrust-reverser cowl doors (Ref. AMM TASK 78-36-00-410-806):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR.
   (2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
Subtask 54-51-61-440-051-A
B. Reactivation of the Thrust Reverser
   (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 54-51-61-942-051-A
C. Aircraft Maintenance Configuration
   (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).
[Rev.10 from 2021] 2026.04.01 06:43:33 UTC
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