Detailed Inspection 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 54-51-00-220-811-A
Detailed Inspection 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: 545230-01
DETAILED INSPECTION 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 54-51-00-941-092-A ** ON A/C NOT FOR ALL
Subtask 54-51-00-220-086-A ** ON A/C NOT FOR ALL
Subtask 54-51-00-420-075-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:00:04 UTC
Detailed Inspection 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: 545230-01
DETAILED INSPECTION 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 |
| 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 54-51-21-000-802-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 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 |
| SRM 511100 | (for corrective action) |
| SRM 512200 | (for corrective action) |
Subtask 54-51-00-941-092-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 54-51-00-040-087-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 54-51-00-010-094-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) 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 54-51-21-000-802):
(a) For the left pylon: 415BL 415CR
(b) For the right pylon: 425BL 425CR.
Subtask 54-51-00-020-077-A ** ON A/C NOT FOR ALL (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 54-51-21-000-802):
(a) For the left pylon: 415BL 415CR
(b) For the right pylon: 425BL 425CR.
D. Removal of the Access Door Supports
(a) Remove the access door supports (2), (3) and (4) from the left panel. To do this:
1 Hold the access door supports (2), (3) and (4).
2 Remove the screws (1) and (5).
3 Remove the access door supports (2), (3) and (4).
(b) Remove the access door supports (7) and (8) from the right panel. To do this:
1 Hold the access door supports (7) and (8).
2 Remove the screws (6), (9) and (10).
3 Remove the access door supports (7) and (8).
(2) For the right pylon:
(a) Remove the access door supports (12) and (13) from the left panel. To do this:
1 Hold the access door supports (12) and (13).
2 Remove the screws (11) and (14).
3 Remove the access door supports (12) and (13).
(b) Remove the access door supports (16), (17) and (18) from the right panel. To do this:
1 Hold the access door supports (16), (17) and (18).
2 Remove the screws (15) and (19).
3 Remove the access door supports (16), (17) and (18).
Subtask 54-51-00-110-091-A ** ON A/C NOT FOR ALL CAUTION:
WHEN YOU REMOVE THE SCREWS, MAKE SURE THAT YOU RECORD THE CORRECT POSITION OF EACH OF THEM. THE SCREWS HAVE DIFFERENT LENGTHS.
(1) For the left pylon: (a) Remove the access door supports (2), (3) and (4) from the left panel. To do this:
1 Hold the access door supports (2), (3) and (4).
2 Remove the screws (1) and (5).
3 Remove the access door supports (2), (3) and (4).
(b) Remove the access door supports (7) and (8) from the right panel. To do this:
1 Hold the access door supports (7) and (8).
2 Remove the screws (6), (9) and (10).
3 Remove the access door supports (7) and (8).
(2) For the right pylon:
(a) Remove the access door supports (12) and (13) from the left panel. To do this:
1 Hold the access door supports (12) and (13).
2 Remove the screws (11) and (14).
3 Remove the access door supports (12) and (13).
(b) Remove the access door supports (16), (17) and (18) from the right panel. To do this:
1 Hold the access door supports (16), (17) and (18).
2 Remove the screws (15) and (19).
3 Remove the access door supports (16), (17) and (18).
E. Preparation of the Inspection Area
(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(2) 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) .
(3) 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).
4. Procedure(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(2) 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) .
(3) 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).
Subtask 54-51-00-220-086-A ** ON A/C NOT FOR ALL
A. Inspection
(1) Do a detailed inspection of the internal and external edges of the access door cutouts of the lateral panels of the pylon. This inspection is applicable between RIB 7 and RIB 8 on the right side and RIB 6 and RIB 7 on the left side.
(2) Make sure that there is no:
(a) Corrosion damage:
5. Close-up(1) Do a detailed inspection of the internal and external edges of the access door cutouts of the lateral panels of the pylon. This inspection is applicable between RIB 7 and RIB 8 on the right side and RIB 6 and RIB 7 on the left side.
(2) 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 related corrective action.
Subtask 54-51-00-420-075-A ** ON A/C NOT FOR ALL
A. Installation of the Access Door Supports
(a) Install the access door supports (2), (3) and (4) on the left panel. To do this:
1 Put and hold the access door supports (2), (3) and (4) in position.
2 Install the screws (1) and (5) and tighten them.
(b) Install the access door supports (7) and (8) on the right panel. To do this:
1 Put and hold the access door supports (7) and (8) in position.
2 Install the screws (6), (9) and (10) and tighten them.
(2) For the right pylon:
(a) Install the access door supports (12) and (13) on the left panel. To do this:
1 Put and hold the access door supports (12) and (13) in position.
2 Install the screws (11) and (14) and tighten them.
(b) Install the access door supports (16), (17) and (18) on the right panel. To do this:
1 Put and hold the access door supports (16), (17) and (18) in position.
2 Install the screws (15) and (19) and tighten them.
Subtask 54-51-00-410-098-A ** ON A/C NOT FOR ALL CAUTION:
MAKE SURE THAT YOU INSTALL EACH OF THE SCREWS IN ITS CORRECT POSITION. THE SCREWS HAVE DIFFERENT LENGTHS. IF YOU DO NOT INSTALL EACH OF THE SCREWS IN ITS CORRECT POSITION, YOU CAN CAUSE DAMAGE.
(1) For the left pylon: (a) Install the access door supports (2), (3) and (4) on the left panel. To do this:
1 Put and hold the access door supports (2), (3) and (4) in position.
2 Install the screws (1) and (5) and tighten them.
(b) Install the access door supports (7) and (8) on the right panel. To do this:
1 Put and hold the access door supports (7) and (8) in position.
2 Install the screws (6), (9) and (10) and tighten them.
(2) For the right pylon:
(a) Install the access door supports (12) and (13) on the left panel. To do this:
1 Put and hold the access door supports (12) and (13) in position.
2 Install the screws (11) and (14) and tighten them.
(b) Install the access door supports (16), (17) and (18) on the right panel. To do this:
1 Put and hold the access door supports (16), (17) and (18) in position.
2 Install the screws (15) and (19) and tighten them.
B. Close Access
(1) Install the pylon lateral access-doors (Ref. AMM TASK 54-51-21-400-802):
(a) For the left pylon: 415BL 415CR
(b) For the right pylon: 425BL 425CR.
Subtask 54-51-00-440-086-A ** ON A/C NOT FOR ALL (1) Install the pylon lateral access-doors (Ref. AMM TASK 54-51-21-400-802):
(a) For the left pylon: 415BL 415CR
(b) For the right pylon: 425BL 425CR.
C. Reactivation of the Thrust Reverser
(1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 54-51-00-942-057-A ** ON A/C NOT FOR ALL (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-805).
D. 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).
Access Door Supports