DOC AIRBUS | AMM A320FSpecial Detailed Inspection (ROTO) of Pylon, Lateral Panels, at Junction with Forward Lateral Spars, between RIB 2 and RIB 3, Attachment Bolts Holes, LH/RH
TASK 54-51-00-250-803-A
Special Detailed Inspection (ROTO) of Pylon, Lateral Panels, at Junction with Forward Lateral Spars, between RIB 2 and RIB 3, Attachment Bolts Holes, LH/RH
Refer to the MPD TASK: 545204-01
SPECIAL DETAILED INSPECTION (ROTO) OF PYLON, LATERAL PANELS, AT JUNCTION WITH FORWARD LATERAL SPARS, BETWEEN RIB 2 AND RIB 3, ATTACHMENT BOLTS HOLES, LH/RH.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 54-51-00-941-100-A ** ON A/C NOT FOR ALL
Subtask 54-51-00-250-054-A ** ON A/C NOT FOR ALL
Subtask 54-51-00-910-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:59:57 UTC
Special Detailed Inspection (ROTO) of Pylon, Lateral Panels, at Junction with Forward Lateral Spars, between RIB 2 and RIB 3, Attachment Bolts Holes, LH/RH
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.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
DO NOT APPLY TEMPORARY PROTECTION SYSTEM (TPS) ON THE INSPECTION AREA. IF YOU APPLY TPS ON THE INSPECTION AREA, YOU CAN CAUSE DAMAGE TO THE AIRCRAFT.
1. Reason for the JobRefer to the MPD TASK: 545204-01
SPECIAL DETAILED INSPECTION (ROTO) OF PYLON, LATERAL PANELS, AT JUNCTION WITH FORWARD LATERAL SPARS, BETWEEN RIB 2 AND RIB 3, ATTACHMENT BOLTS HOLES, LH/RH.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 415 | LOWER PYLON |
| 425 | LOWER PYLON |
| 415AL, 415AR, 425AL, 425AR | |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 51-78-00-916-001-A | Application of Temporary Protection System (TPS) |
| TASK 54-51-21-000-802-A | Removal of the Pylon Lateral Access-Doors |
| TASK 54-51-21-400-802-A | Installation of the Pylon Lateral Access-Doors |
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 71-00-51-000-802-A | Removal of the Power Plant (Bootstrap Method) |
| TASK 71-00-51-000-802-A-01 | Removal of the Power Plant (JacXson Method) |
| 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 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-30-00-440-805-A | Reactivation of the Thrust Reverser System after Ground Maintenance |
| TASK 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
| TASK 78-36-00-410-802-A | Closing of the Thrust Reverser Cowl-Doors |
| SRM 511100 | |
| SRM 512200 | |
| SRM 512300 | |
| SRM 512400 | |
| SRM 514200 | |
| NTM 545204 | |
| SRM 511100 | (for corrective action) |
| SRM 512200 | (for corrective action) |
Subtask 54-51-00-941-100-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
Subtask 54-51-00-040-095-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
B. Deactivation of the Thrust Reverser
Subtask 54-51-00-010-103-A ** ON A/C NOT FOR ALL 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 78-30-00-040-805). C. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
(2) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
(3) Remove the power plant (Ref. AMM TASK 71-00-51-000-802).
(4) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon, in zone 415
(b) For the right pylon, in zone 425.
(5) Remove the pylon lateral access-doors (Ref. AMM TASK 54-51-21-000-802):
(a) For the left pylon: 415AL, 415AR
(b) For the right pylon: 425AL, 425AR.
Subtask 54-51-00-110-099-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
(2) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
(3) Remove the power plant (Ref. AMM TASK 71-00-51-000-802).
(4) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon, in zone 415
(b) For the right pylon, in zone 425.
(5) Remove the pylon lateral access-doors (Ref. AMM TASK 54-51-21-000-802):
(a) For the left pylon: 415AL, 415AR
(b) For the right pylon: 425AL, 425AR.
D. Preparation of the Inspection Area
(1) Remove the sealant and/or paint from the inspection area if this is necessary for the Non-destructive Testing Manual (NTM) task.
(2) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(3) If it is not sufficiently clean, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Make sure that there is no Temporary Protection System (TPS) layer and if there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).
(5) Do a visual check of the inspection area for damage or discontinuities.
(6) Make sure that there is no:
(a) Corrosion damage:
4. Procedure(1) Remove the sealant and/or paint from the inspection area if this is necessary for the Non-destructive Testing Manual (NTM) task.
(2) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(3) If it is not sufficiently clean, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Make sure that there is no Temporary Protection System (TPS) layer and if there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).
(5) Do a visual check of the inspection area for damage or discontinuities.
(6) Make sure that there is no:
(a) Corrosion damage:
- If you find corrosion damage, refer to Structural Repair Manual SRM 512200 for types of corrosion, inspection, removal and corrosion protection.
- If you find this type of damage, refer to Structural Repair Manual SRM 511100 for damage classification and corrective action.
Subtask 54-51-00-250-054-A ** ON A/C NOT FOR ALL
A. Inspection
Inspection (ROTO) of the Attachment Bolt Holes at the Junction of the Lateral Panels and the Forward Lateral Spars ** ON A/C NOT FOR ALL
(1) Do a special detailed inspection (ROTO) of the attachment bolt holes at the junction of the lateral panels and the forward lateral spars. Do this inspection on the left and right sides. This inspection includes the area between RIB2 and RIB3. Refer to Non-destructive Testing Manual NTM 545204.
(a) For the inspection of hole types A and B:
(2) Make a report after the NDT inspection:
(a) Corrosion damage:
5. Close-up Inspection (ROTO) of the Attachment Bolt Holes at the Junction of the Lateral Panels and the Forward Lateral Spars ** ON A/C NOT FOR ALL (a) For the inspection of hole types A and B:
- Do the inspection on each side of pylon.
(2) Make a report after the NDT inspection:
(a) Corrosion damage:
- If you find corrosion damage, refer to Structural Repair Manual ( SRM 512200) for types of corrosion, inspection, removal and corrosion protection.
- If you find this type of damage, refer to Structural Repair Manual SRM 511100 for damage classification and corrective action.
Subtask 54-51-00-910-050-A ** ON A/C NOT FOR ALL
A. Sealant or Paint Application
(1) Apply sealant ( SRM 512400) or paint ( SRM 512300) on the inspection area, if removed.
Subtask 54-51-00-420-076-A ** ON A/C NOT FOR ALL (1) Apply sealant ( SRM 512400) or paint ( SRM 512300) on the inspection area, if removed.
B. Installation of the Components
(1) After inspection of hole types A and B:
(a) Install the bolts and the self-locking nuts of inspected holes. Refer to Structural Repair Manual SRM 514200.
(b) Refer to the installation drawing in the SRM identification section for the new bolts and the self-locking nuts references.
Subtask 54-51-00-410-110-A ** ON A/C NOT FOR ALL (1) After inspection of hole types A and B:
(a) Install the bolts and the self-locking nuts of inspected holes. Refer to Structural Repair Manual SRM 514200.
(b) Refer to the installation drawing in the SRM identification section for the new bolts and the self-locking nuts references.
C. Close Access
(1) Install the power plant (Ref. AMM TASK 71-00-51-400-802).
(2) Install the pylon lateral access-doors (Ref. AMM TASK 54-51-21-400-802):
(a) For the left pylon: 415AL, 415AR
(b) For the right pylon: 425AL, 425AR.
(3) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
(4) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
Subtask 54-51-00-440-094-A ** ON A/C NOT FOR ALL (1) Install the power plant (Ref. AMM TASK 71-00-51-400-802).
(2) Install the pylon lateral access-doors (Ref. AMM TASK 54-51-21-400-802):
(a) For the left pylon: 415AL, 415AR
(b) For the right pylon: 425AL, 425AR.
(3) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
(4) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
D. Reactivation of the Thrust Reverser
(1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 54-51-00-942-068-A ** ON A/C NOT FOR ALL (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-805).
E. 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).
(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).