DOC AIRBUS | AMM A320FSpecial Detailed Inspection (ROTO) of Ring Frame at Circumferential Joint of Rear Pressure Bulkhead Skin at FR 70, AFT Face
TASK 53-51-00-250-801-A
Special Detailed Inspection (ROTO) of Ring Frame at Circumferential Joint of Rear Pressure Bulkhead Skin at FR 70, AFT Face
Refer to the MPD TASK: 535107-02
SPECIAL DETAILED INSPECTION (ROTO) OF RING FRAME AT CIRCUMFERENTIAL JOINT OF REAR PRESSURE BULKHEAD SKIN AT FR 70, AFT FACE.
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 53-51-00-010-078-A
Subtask 53-51-00-250-053-A
Subtask 53-51-00-420-050-A
[Rev.10 from 2021]
2026.04.02 06:29:27 UTC
Special Detailed Inspection (ROTO) of Ring Frame at Circumferential Joint of Rear Pressure Bulkhead Skin at FR 70, AFT Face
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 310
1. Reason for the JobRefer to the MPD TASK: 535107-02
SPECIAL DETAILED INSPECTION (ROTO) OF RING FRAME AT CIRCUMFERENTIAL JOINT OF REAR PRESSURE BULKHEAD SKIN AT FR 70, AFT FACE.
NOTE: The effectivity of this task is ALL. To know if this task is applicable to your aircraft, refer to the MPD task applicability. The information on weight variant groups is given in the MPD and SRM introductions.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 3M (10 FT) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.12ABC1) | Corrosion Preventive Compound_Water Displacing Soft Film - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 310 | FUSLG TAIL SECTION AFT OF AFT PRESS BHD |
| 312AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 51-78-00-916-001-A | Application of Temporary Protection System (TPS) |
| SRM 511100 | |
| SRM 512200 | |
| NTM 535107 | |
| SRM 512300 | (for corrective action) |
| SRM 512400 | (for corrective action) |
| SRM 514200 | (for corrective action) |
Ring Frame at Circumferential Joint of Rear Pressure Bulkhead Skin at FR 70, AFT FaceSubtask 53-51-00-010-078-A
A. Get Access
(2) Open access door 312AR.
Subtask 53-51-00-110-082-A WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
(1) Put the ACCESS PLATFORM 3M (10 FT) below access door 312AR. - THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
(2) Open access door 312AR.
B. 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 not, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) If there is a TPS layer and if it does not let you do a satisfactory inspection, remove the TPS layer (Ref. AMM TASK 51-78-00-916-001).
(4) Remove the sealant and/or paint from the inspection area if this is necessary for the Nondestructive-Testing Manual (NTM) task.
(5) Remove the fasteners to inspect the holes SRM 514200.
4. Procedure(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
(2) If not, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) If there is a TPS layer and if it does not let you do a satisfactory inspection, remove the TPS layer (Ref. AMM TASK 51-78-00-916-001).
(4) Remove the sealant and/or paint from the inspection area if this is necessary for the Nondestructive-Testing Manual (NTM) task.
(5) Remove the fasteners to inspect the holes SRM 514200.
Subtask 53-51-00-250-053-A
A. Inspection
(1) Do a special detailed inspection (ROTO) of the ring frame at circumferential joint of rear pressure bulkhead skin at FR 70, AFT Face, for damage or discontinuities ( NTM 535107).
(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.
(b) Other damage (scratches, cracks, gouges, dents, creases):
If you find this type of damage, refer to the Structural Repair Manual SRM 511100 for the damage types, classification and corrective action.
5. Close-up(1) Do a special detailed inspection (ROTO) of the ring frame at circumferential joint of rear pressure bulkhead skin at FR 70, AFT Face, for damage or discontinuities ( NTM 535107).
(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.
(b) Other damage (scratches, cracks, gouges, dents, creases):
If you find this type of damage, refer to the Structural Repair Manual SRM 511100 for the damage types, classification and corrective action.
Subtask 53-51-00-420-050-A
A. Installation of the Components
(1) Refer to the installation drawing in the SRM identification section for the new fastener references.
(2) Install the fasteners of the inspected holes ( SRM 514200).
Subtask 53-51-00-916-066-A (1) Refer to the installation drawing in the SRM identification section for the new fastener references.
(2) Install the fasteners of the inspected holes ( SRM 514200).
B. Sealant or paint application
(1) If the NTM procedure asked to remove the sealant and/or paint from the inspection area, apply sealant ( SRM 512400) or paint ( SRM 512300) on the inspection area.
Subtask 53-51-00-916-067-A (1) If the NTM procedure asked to remove the sealant and/or paint from the inspection area, apply sealant ( SRM 512400) or paint ( SRM 512300) on the inspection area.
C. Check and Application of the TPS Layer
(1) If the TPS was removed at the "Preparation of the Inspection Area", apply a new layer of Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) (Ref. AMM TASK 51-78-00-916-001).
(2) If the TPS layer was not removed at the "Preparation of the Inspection Area", do a check of the condition and integrity of the TPS layer (Ref. AMM TASK 51-78-00-916-001).
(3) If the TPS has local damage, remove the damaged TPS layer and apply a new layer of Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) (Ref. AMM TASK 51-78-00-916-001).
Subtask 53-51-00-410-076-A (1) If the TPS was removed at the "Preparation of the Inspection Area", apply a new layer of Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) (Ref. AMM TASK 51-78-00-916-001).
(2) If the TPS layer was not removed at the "Preparation of the Inspection Area", do a check of the condition and integrity of the TPS layer (Ref. AMM TASK 51-78-00-916-001).
(3) If the TPS has local damage, remove the damaged TPS layer and apply a new layer of Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) (Ref. AMM TASK 51-78-00-916-001).
NOTE: If, after the check of the condition and integrity, the TPS layer is in the correct condition, Airbus recommends that you apply a new layer as a spray on the existing layer. This is to make sure that the TPS layer continues to give satisfactory corrosion protection.
D. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 312AR.
(3) Remove the access platform(s).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close access door 312AR.
(3) Remove the access platform(s).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.