W DOC AIRBUS | AMM A320F

Visual Inspection of the Pylon-to-Wing Attachments for the Rotation of the Bolts and the Bearings at the Forward and Aft Attachments

TASK 54-51-17-210-801-A
Visual Inspection of the Pylon-to-Wing Attachments for the Rotation of the Bolts and the Bearings at the Forward and Aft Attachments

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
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: 470
ZONE: 480
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 3M (10 FT)- ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.06AAC1)
Polysulfide Sealant-General Purpose Interfay -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
470
ENGINE 1 AFT PYLON
480
ENGINE 2 AFT PYLON
471AL, 475AL, 475BL, 481AL, 481BL, 485AL, 485BL
414FR, 423FL, 471CL, 472AR, 472BR, 476AR, 476BR, 482AR, 482CR, 486AR, 486BR
471AR, 471BL, 471BR, 471CR, 471DL, 475AR, 475BR, 481AR, 481BR, 481CL, 481DR, 485AR, 485BR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 54-51-17-000-001-A
Removal of the Pylon-to-Wing Forward Attach-Fitting at RIB4
TASK 54-51-17-000-002-A
Removal of the Pylon-to-Wing Aft Attach-Fitting at RIB10
TASK 54-51-17-000-003-A
Removal of the Bearing of the Pylon Rear Attachment at RIB10
TASK 54-51-17-400-001-A
Installation of the Pylon-to-Wing Forward Attach-Fitting at RIB4
TASK 54-51-17-400-002-A
Installation of the Pylon-to-Wing Aft Attach-Fitting at RIB10
TASK 54-51-17-400-003-A
Installation of the Bearing of the Pylon Rear Attachment at RIB10
TASK 54-53-11-000-002-A
Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-000-002-B
Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-A
Installation of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-B
Installation of the Pylon-to-Wing Access Panels
TASK 57-26-12-000-001-A
Removal of the Pylon Rear Attachment Bearing
TASK 57-26-12-400-001-A
Installation of the Pylon Rear Attachment Bearing
TASK 78-30-00-040-012-A
Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-081-041-A
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-440-012-A
Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-30-00-481-041-A
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B
Make the Thrust Reverser Unserviceable for Maintenance
SRM 517600
AIPC 54-51-17-
AIPC 54-51-29-
AIPC 57-26-05-
F Pylon-to-Wing Attachments - Forward and Aft Attachments and Spigot Fittings
3. Job Set-up
Subtask 54-51-17-941-084-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) On the center pedestal, on ENG panel 115VU:
     (a) Put the WARNING NOTICE(S) in position to tell persons not to start engine 1(2).
   (2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
   (3) On the overhead panel, on maintenance panel 50VU:
     (a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Put the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 54-51-17-040-075-A ** ON A/C NOT FOR ALL
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 the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041).
Subtask 54-51-17-040-075-B ** ON A/C NOT FOR ALL
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 the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-012).
Subtask 54-51-17-010-075-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
     (a) For the left pylon, at zone 470
     (b) For the right pylon, at zone 480.
   (2) Remove the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-000-002):
     (a) For the left pylon: 414FR 471AL 471CL 475AL 475BL 472AR 472BR, 476AR and 476BR
     (b) For the right pylon: 423FL 481AL 481BL 485AL 485BL 482AR 482CR, 486AR and 486BR.
Subtask 54-51-17-010-075-B ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
     (a) For the left pylon, at zone 470
     (b) For the right pylon, at zone 480.
   (2) Remove the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-000-002):
     (a) For the left pylon: 471AL 471BL 471DL 475AL 475BL 471AR 471BR 471CR 475AR and 475BR
     (b) For the right pylon: 481AL 481BL 481CL 485AL 485BL 481AR 481BR 481DR 485AR and 485BR.
4. Procedure
Subtask 54-51-17-210-059-A ** ON A/C NOT FOR ALL
A. Visual Inspection of the Pylon-to-Wing Attachments for the Rotation of the Bearings at the Aft Attachments
   (1) Do a visual inspection of the pylon-to-wing attachments at the aft attachments (RIB10), for the bearing rotation, at:
  • The upper bearings (14)
  • The lower bearings (13).
   (2) If there is no rotation of the upper bearings (14) and the lower bearings (13), go to step 4.B.
   (3) If there is a rotation at one of the upper bearings (14) or the lower bearings (13), do the steps that follow:
     (a) Where there is a rotation, do a visual inspection of the related lockwasher (16) or (17) and slotted nut (15) or (18) (where the tab of the lockwasher (16) or (17) safeties the slotted nut (15) or (18)).
     (b) If there is no damage on the related lockwasher (16) or (17) and slotted nut (15) or (18), the bearing rotation is permitted.
       1 For the upper bearings (14), do a check of the sealant fillet.
         a If the sealant is damaged, repair it with Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) SRM 517600.
         b Go to step 4.B.
     (c) If there is damage on the related lockwasher (16) or (17) or slotted nut (15) or (18):
       1 Replace the damaged parts:
         a For the upper bearing (14):
         b For the lower bearings (13):
       2 It is recommended to replace the lower bearings (13) with the new lower bearings (13), part number D0003012100000 or D0003012100200 (interchangeable part of the lower bearings (13)) (Ref. AMM TASK 54-51-17-000-003) and (Ref. AMM TASK 54-51-17-400-003).
         a Replace the slotted nut (18) and the lockwasher (17) (Ref. AMM TASK 54-51-17-000-003) and (Ref. AMM TASK 54-51-17-400-003).
NOTE: If you replace the lower bearings (13) with the new lower bearings (13) with the same part number, the same damage could occur again.
       3 When a lockwasher (16) or (17) is damaged but stays in position during a short overhaul:
CAUTION: WHEN YOU FIND A DAMAGED LOCKWASHER, AIRBUS RECOMMENDS THAT YOU REPLACE IT BEFORE THE NEXT FLIGHT. BUT IF YOU FIND A LOCKWASHER THAT IS DAMAGED BUT STAYS IN POSITION DURING A SHORT OVERHAUL, A LONGER TIME LIMIT CAN BE APPLICABLE FOR THE REPLACEMENT OF THE LOCKWASHER. IN THESE CONDITIONS, YOU MUST CONTACT AIRBUS FIRST TO KNOW WHICH TIME LIMIT YOU MUST OBEY.
         a You must contact Airbus for the replacement of the damaged lockwasher (16) or (17):
  • You must send the damage report to Airbus to know which is the time limit that you must obey.
  • You will receive additional information from Airbus.
Subtask 54-51-17-210-059-B ** ON A/C NOT FOR ALL
A. Visual Inspection of the Pylon-to-Wing Attachments for the Rotation of the Bearings at the Aft Attachments
   (1) Do a visual inspection of the pylon-to-wing attachments at the aft attachments (RIB10), for the bearing rotation, at:
  • The upper bearings (14)
  • The lower bearings (13).
   (2) If there is no rotation of the upper bearings (14) and the lower bearings (13), go to step 4.B.
   (3) If there is a rotation at one of the upper bearings (14) or the lower bearings (13), do the steps that follow:
     (a) Where there is a rotation, do a visual inspection of the related lockwasher (16) or (17) and slotted nut (15) or (18) (where the tab of the lockwasher (16) or (17) safeties the slotted nut (15) or (18)).
     (b) If there is no damage on the related lockwasher (16) or (17) and slotted nut (15) or (18), the bearing rotation is permitted.
       1 For the upper bearings (14), do a check of the sealant fillet.
         a If the sealant is damaged, repair it with Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) SRM 517600.
         b Go to step 4.B.
     (c) If there is damage on the related lockwasher (16) or (17) or slotted nut (15) or (18):
       1 Replace the damaged parts:
         a For the upper bearing (14):
         b For the lower bearings (13):
       2 When a lockwasher (16) or (17) is damaged but stays in position during a short overhaul:
CAUTION: WHEN YOU FIND A DAMAGED LOCKWASHER, AIRBUS RECOMMENDS THAT YOU REPLACE IT BEFORE THE NEXT FLIGHT. BUT IF YOU FIND A LOCKWASHER THAT IS DAMAGED BUT STAYS IN POSITION DURING A SHORT OVERHAUL, A LONGER TIME LIMIT CAN BE APPLICABLE FOR THE REPLACEMENT OF THE LOCKWASHER. IN THESE CONDITIONS, YOU MUST CONTACT AIRBUS FIRST TO KNOW WHICH TIME LIMIT YOU MUST OBEY.
         a You must contact Airbus for the replacement of the damaged lockwasher (16) or (17):
  • You must send the damage report to Airbus to know which is the time limit that you must obey.
  • You will receive additional information from Airbus.
Subtask 54-51-17-210-060-A ** ON A/C NOT FOR ALL
B. Visual Inspection of the Pylon-to-Wing Attachments for the Rotation of the Bolts at the Forward and Aft Attachments
   (1) Do a visual inspection at the forward attachment (RIB4) and the aft attachment (RIB10) for the rotation of the bolts (1), (4), (7) and (10).
   (2) If there is no rotation of the bolts (1), (4), (7) and (10), go to step 5.A. for the next steps.
   (3) If there is a rotation of a minimum of one bolt (1), (4), (7) or (10), do the steps that follow:
     (a) Where there is a rotation, do a visual inspection of the related lockwasher (2), (6), (9) or (12) and slotted nut (3), (5), (8) or (11) (where the tab of the lockwasher (2), (6), (9) or (12) safeties the slotted nut (3), (5), (8) or (11)).
     (b) If there is no damage on the related lockwasher (2), (6), (9) or (12) and slotted nut (3), (5), (8) or (11), the bolt rotation is permitted.
       1 Go to step 5.A.
     (c) If you found damage on the slotted nut (3), (5), (8) or (11) or lockwasher (2), (6), (9) or (12), replace them before the next flight:
NOTE: It is not necessary to remove the shackles, the pylon or the engine to replace the slotted nut (3), (5), (8) or (11) or the lockwasher (2), (6), (9) or (12).
     (d) Make sure that the tab-washers and the cotter pins of the bolts (1), (4), (7) and (10) are correctly installed:
5. Close-up
Subtask 54-51-17-410-068-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Install the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-400-002):
     (a) For the left pylon: 414FR 471AL 471CL 475AL 475BL 472AR 472BR 476AR and 476BR
     (b) For the right pylon: 423FL 481AL 481BL 485AL 485BL 482AR 482CR 486AR and 486BR.
   (2) Make sure that the work area is clean and clear of tools and other items.
   (3) Remove the access platform(s).
Subtask 54-51-17-410-068-B ** ON A/C NOT FOR ALL
A. Close Access
   (1) Install the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-400-002):
     (a) For the left pylon: 471AL 471BL 471DL 475AL 475BL 471AR 471BR 471CR 475AR and 475BR
     (b) For the right pylon: 481AL 481BL 481CL 485AL 485BL 481AR 481BR 481DR 485AR and 485BR.
   (2) Make sure that the work area is clean and clear of tools and other items.
   (3) Remove the access platform(s).
Subtask 54-51-17-440-069-A ** ON A/C NOT FOR ALL
B. Reactivation of the Thrust Reverser
   (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 54-51-17-440-069-B ** ON A/C NOT FOR ALL
B. Reactivation of the Thrust Reverser
   (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-012).
Subtask 54-51-17-942-070-A ** ON A/C NOT FOR ALL
C. Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 02:00:54 UTC
"Aviabrain" 2025