DOC AIRBUS | AMM A320FSpecial Detailed Inspection (ROTO) of Pylon, Lateral Panels, at the Edge of Access Door Cutouts, between RIB 7 and RIB 8 (RH) and RIB 6 and RIB 7 (LH)
TASK 54-51-00-250-810-A
Special Detailed Inspection (ROTO) of Pylon, Lateral Panels, at the Edge of Access Door Cutouts, between RIB 7 and RIB 8 (RH) and RIB 6 and RIB 7 (LH)
Refer to the MPD TASK: 545330-02
SPECIAL DETAILED INSPECTION (ROTO) OF PYLON, LATERAL PANELS, AT THE EDGE OF ACCESS DOOR CUTOUTS, BETWEEN RIB 7 AND RIB 8 (RH) AND RIB 6 AND RIB 7 (LH).
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 54-51-00-941-119-A
Subtask 54-51-00-250-057-A
Subtask 54-51-00-390-053-A
[Rev.10 from 2021]
2026.04.01 02:00:23 UTC
Special Detailed Inspection (ROTO) of Pylon, Lateral Panels, at the Edge of Access Door Cutouts, between RIB 7 and RIB 8 (RH) and RIB 6 and RIB 7 (LH)
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: 545330-02
SPECIAL DETAILED INSPECTION (ROTO) OF PYLON, LATERAL PANELS, AT THE EDGE OF ACCESS DOOR CUTOUTS, BETWEEN RIB 7 AND RIB 8 (RH) AND RIB 6 AND RIB 7 (LH).
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 | FLASHLIGHT |
| No specific | AR | MIRROR - INSPECTION |
| No specific | AR | WARNING NOTICE(S) |
| 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 |
| 415BL, 415CR, 425BL, 425CR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 51-78-00-916-001-A | Application of Temporary Protection System (TPS) |
| TASK 54-51-21-000-804-A | Removal of the Pylon Lateral Access-Doors |
| TASK 54-51-21-400-803-A | Installation of the Pylon Lateral Access-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) |
| SRM 512300 | |
| SRM 512400 | |
| NTM 545330 | |
| SRM 511100 | (for corrective action) |
| SRM 512200 | (for corrective action) |
Access Door SupportsSubtask 54-51-00-941-119-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) Put a WARNING NOTICE(S) 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) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 54-51-00-040-116-A (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) Put a WARNING NOTICE(S) 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) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
B. Deactivation of the Thrust Reverser
Subtask 54-51-00-010-126-A 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 78-30-00-040-807). C. Get Access
(1) 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.
(2) Remove the pylon lateral access-doors (Ref. AMM TASK 54-51-21-000-804):
(a) For the left pylon: 415BL 415CR
(b) For the right pylon: 425BL 425CR.
Subtask 54-51-00-020-090-A (1) 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.
(2) Remove the pylon lateral access-doors (Ref. AMM TASK 54-51-21-000-804):
(a) For the left pylon: 415BL 415CR
(b) For the right pylon: 425BL 425CR.
D. Removal of the Access Door Supports
(1) Hold the access door supports (2), (3), (4) and (5) that are installed on the lateral panels of the pylon.
(2) Remove the screws (1).
(3) Remove the access door supports (2), (3), (4) and (5) from the lateral panels of the pylon.
Subtask 54-51-00-110-117-A (1) Hold the access door supports (2), (3), (4) and (5) that are installed on the lateral panels of the pylon.
(2) Remove the screws (1).
(3) Remove the access door supports (2), (3), (4) and (5) from the lateral panels of the pylon.
E. 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 TPS layer and if there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).
(5) Use a FLASHLIGHT and a MIRROR - INSPECTION for the inspection, if necessary.
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 TPS layer and if there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).
(5) Use a FLASHLIGHT and a MIRROR - INSPECTION for the inspection, if necessary.
Subtask 54-51-00-250-057-A
A. Inspection
(1) Do a special detailed inspection (ROTO) of the edges of the access door cutouts of the lateral panels of the pylon for damage or discontinuities. This inspection is applicable between RIB7 and RIB8 on the right side and RIB6 and RIB7 on the left side. Refer to the Non-destructive Testing Manual ( NTM 545330).
(2) Make a report of the damage after the NTM inspection:
(a) Corrosion damage:
5. Close-up(1) Do a special detailed inspection (ROTO) of the edges of the access door cutouts of the lateral panels of the pylon for damage or discontinuities. This inspection is applicable between RIB7 and RIB8 on the right side and RIB6 and RIB7 on the left side. Refer to the Non-destructive Testing Manual ( NTM 545330).
(2) Make a report of the damage after the NTM inspection:
(a) Corrosion damage:
- If you find corrosion, refer to the Structural Repair Manual ( SRM 512200) for the corrosion types, inspection, removal and subsequent corrosion protection.
- If you find this type of damage, refer to the Structural Repair Manual ( SRM 511100) for the damage types, classification and corrective action.
Subtask 54-51-00-390-053-A
A. Sealant or Paint Application
(1) If the NTM procedure asked to remove the sealant and/or paint from the inspection area, apply sealant (refer to SRM 512400) or paint (refer to SRM 512300) on the inspection area.
Subtask 54-51-00-420-088-A (1) If the NTM procedure asked to remove the sealant and/or paint from the inspection area, apply sealant (refer to SRM 512400) or paint (refer to SRM 512300) on the inspection area.
B. Installation of the Access Door Supports
(1) Put and hold the access door supports (2), (3), (4) and (5) in position on the lateral panels of the pylon.
(2) Install the screws (1) and tighten them.
Subtask 54-51-00-410-135-A (1) Put and hold the access door supports (2), (3), (4) and (5) in position on the lateral panels of the pylon.
(2) Install the screws (1) and tighten them.
C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the pylon lateral access-doors (Ref. AMM TASK 54-51-21-400-803):
(a) For the left pylon: 415BL 415CR
(b) For the right pylon: 425BL 425CR.
Subtask 54-51-00-440-115-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the pylon lateral access-doors (Ref. AMM TASK 54-51-21-400-803):
(a) For the left pylon: 415BL 415CR
(b) For the right pylon: 425BL 425CR.
D. Reactivation of the Thrust Reverser
(1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 54-51-00-942-094-A (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-807).
E. Aircraft Maintenance Configuration
(1) Remove the access platform(s).
(2) Remove the WARNING NOTICE(S).
(1) Remove the access platform(s).
(2) Remove the WARNING NOTICE(S).