DOC AIRBUS | AMM A320FDetailed Inspection of Aft Avionics Compartment Access Door, Internal Structure
TASK 52-41-14-200-001-A
Detailed Inspection of Aft Avionics Compartment Access Door, Internal Structure
Refer to the MPD TASK: 524121-01
DETAILED INSPECTION OF AFT AVIONICS COMPARTMENT ACCESS DOOR, INTERNAL STRUCTURE
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 52-41-14-010-052-A
Subtask 52-41-14-220-052-A
Subtask 52-41-14-865-054-A
[Rev.10 from 2021]
2026.04.02 06:28:15 UTC
Detailed Inspection of Aft Avionics Compartment Access Door, Internal Structure
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 824
1. Reason for the JobRefer to the MPD TASK: 524121-01
DETAILED INSPECTION OF AFT AVIONICS COMPARTMENT ACCESS DOOR, INTERNAL STRUCTURE
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 | SAFETY CLIP - CIRCUIT BREAKER |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05RDA1) | Adhesive Film Tape-Masking - - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.12ABB1) | Corrosion Preventive Compound-Water Displacing Hard Film - |
| (Material No.12ABC1) | Corrosion Preventive Compound_Water Displacing Soft Film - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| No specific | masking paper |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 824 | REAR AVIONIC COMPARTMENT DOOR (RIGHT) |
| 824 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 51-78-00-916-001-A | Application of Temporary Protection System (TPS) |
| TASK 52-41-00-010-002-A | Open the Avionics Compartment Doors for Access |
| TASK 52-41-00-410-002-A | Close the Avionics Compartment Doors after Access |
| SRM 51110001 | (for corrective action) |
| SRM 51220001 | (for corrective action) |
Aft Avionics-Compartment Access Door 824 - Internal StructureSubtask 52-41-14-010-052-A
A. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the zone 824.
(2) Open the aft avionics compartment door 824 (Ref. AMM TASK 52-41-00-010-002).
Subtask 52-41-14-865-053-A (1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the zone 824.
(2) Open the aft avionics compartment door 824 (Ref. AMM TASK 52-41-00-010-002).
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 52-41-14-110-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 121VU | EIS/SDAC1 AND 2/DOOR/DET/AVNCS | 46WV | P02 |
C. Prepare the Inspection Area
(1) Make sure that the inspection area is clean to do a satisfactory inspection of the area.
(2) If the inspection area is not clean, clean it with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(3) If you cannot do a satisfactory inspection because of the TPS layer, remove the TPS layer (Ref. AMM TASK 51-78-00-916-001).
4. Procedure(1) Make sure that the inspection area is clean to do a satisfactory inspection of the area.
(2) If the inspection area is not clean, clean it with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(3) If you cannot do a satisfactory inspection because of the TPS layer, remove the TPS layer (Ref. AMM TASK 51-78-00-916-001).
Subtask 52-41-14-220-052-A
A. Inspection
(1) Do a detailed inspection of the internal structure of the aft avionics compartment access door 824.
(2) Make sure that there is no:
(a) Corrosion damage:
- If you find corrosion damage, refer to the Structural Repair Manual SRM 51220001 for types, inspection, removal and corrosion protection.
(b) Other damage (scratches, cracks, gouges, dents, creases):
- If you find other damage, refer to the Structural Repair Manual SRM 51110001 for damage classification and corrective action.
Subtask 52-41-14-916-051-A (1) Do a detailed inspection of the internal structure of the aft avionics compartment access door 824.
(2) Make sure that there is no:
(a) Corrosion damage:
- If you find corrosion damage, refer to the Structural Repair Manual SRM 51220001 for types, inspection, removal and corrosion protection.
(b) Other damage (scratches, cracks, gouges, dents, creases):
- If you find other damage, refer to the Structural Repair Manual SRM 51110001 for damage classification and corrective action.
B. Temporary Protection System
(1) Apply masking paper or masking tape Adhesive Film Tape-Masking - - (Material No.05RDA1) on the items adjacent to the area : the seals, bellows, door mechanisms, proximity switches and fittings.
(2) If there is a TPS layer, make sure that it is in the correct condition (Ref. AMM TASK 51-78-00-916-001).
(4) Apply a full new layer of Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) on the inspection area (Ref. AMM TASK 51-78-00-916-001) if, before the inspection:
5. Close-up(1) Apply masking paper or masking tape Adhesive Film Tape-Masking - - (Material No.05RDA1) on the items adjacent to the area : the seals, bellows, door mechanisms, proximity switches and fittings.
(2) If there is a TPS layer, make sure that it is in the correct condition (Ref. AMM TASK 51-78-00-916-001).
NOTE: Airbus recommends that you always apply a new layer of TPS. This is to make sure that the TPS layer continues to give satisfactory corrosion protection. If, after the check, you think that the TPS layer is in the correct condition, you can spray a new layer on the existing layer.
(3) If the TPS layer has local damage, remove the damaged TPS layer and apply a new layer of Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) on the inspection area (Ref. AMM TASK 51-78-00-916-001). (4) Apply a full new layer of Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) on the inspection area (Ref. AMM TASK 51-78-00-916-001) if, before the inspection:
- You removed the TPS layer, or
- You cleaned the inspection area with high-pressure water, steam, solvents and/or cleaning agents.
Subtask 52-41-14-865-054-A
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 52-41-14-410-052-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 121VU | EIS/SDAC1 AND 2/DOOR/DET/AVNCS | 46WV | P02 |
B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the aft avionics compartment door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the aft avionics compartment door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).