DOC AIRBUS | AMM A320FGeneral Visual Inspection of Fuselage Internal Structure below Cabin Floor Panels, including Cabin Floor Structure between FR36 and FR46
TASK 53-31-00-210-031-A
General Visual Inspection of Fuselage Internal Structure below Cabin Floor Panels, including Cabin Floor Structure between FR36 and FR46
1. Reason for the Job
Refer to the MPD TASK: 533135-01
GENERAL VISUAL INSPECTION OF FUSELAGE INTERNAL STRUCTURE BELOW CABIN FLOOR PANELS, INCLUDING CABIN FLOOR STRUCTURE BETWEEN FR 36 AND FR 46
2. Job Set-up Information
A. Consumable Materials
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 53-31-00-010-092-A
Subtask 53-31-00-210-080-A
Subtask 53-31-00-410-090-A
[Rev.10 from 2021]
2026.04.02 06:29:06 UTC
General Visual Inspection of Fuselage Internal Structure below Cabin Floor Panels, including Cabin Floor Structure between FR36 and FR46
1. Reason for the Job
Refer to the MPD TASK: 533135-01
GENERAL VISUAL INSPECTION OF FUSELAGE INTERNAL STRUCTURE BELOW CABIN FLOOR PANELS, INCLUDING CABIN FLOOR STRUCTURE BETWEEN FR 36 AND FR 46
2. Job Set-up Information
A. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05RDA1) | Adhesive Film Tape-Masking - - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 145 | PRESS ZONE BETW WING CTR BOX MAIN GEAR |
| 146 | PRESS ZONE BETW WING CTR BOX MAIN GEAR |
| 241EF, 241FF, 241GF, 241HF, 241JF, 241KF, 241LF, 241MF, 242FF, 242GF, 242HF, 242KF, 242LF, 242MF |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 21-20-00-010-001-A | Removal of the Air-Conditioning Distribution Ducts |
| TASK 21-20-00-410-001-A | Installation of the Air-Conditioning Distribution Ducts |
| TASK 25-23-44-000-001-A | Removal of the Lower Sidewall Panels (Dado Panels) |
| TASK 25-23-44-400-001-A | Installation of the Lower Sidewall Panels (Dado Panels) |
| TASK 51-78-00-916-001-A | Application of Temporary Protection System (TPS) |
| TASK 53-00-00-000-801-A | Removal of the Floor Panels in the Cabin from FR12 to FR70 |
| TASK 53-00-00-000-801-A-01 | Removal of the Floor Panels in the Cabin from FR12 to FR70 (Alternative Removal Procedure - Dry Sealing Concept) |
| TASK 53-00-00-000-801-A-02 | Removal of the Cabin Floor Panels from FR12 to FR70 (Alternative Removal Procedure with the Skyflex Option) |
| TASK 53-00-00-400-801-A | Installation of the Floor Panels in the Cabin from FR12 to FR70 |
| TASK 53-00-00-400-801-A-01 | Installation of the Floor Panels in the Cabin from FR12 to FR70 (Alternative Installation Procedure - Dry Sealing Concept) |
| TASK 53-00-00-400-801-A-02 | Installation of the Cabin Floor Panels from FR12 to FR70 (Alternative Installation Procedure with the Skyflex Option) |
| SRM 53311400 | (for corrective action) |
Fuselage Internal Structure below Cabin Floor Panels, including Cabin Floor Structure between FR36 and FR46Subtask 53-31-00-010-092-A
A. Get Access
(1) Remove the necessary equipment and furnishing to get access to the cabin floor panels.
(2) Remove floor panels 241HF 241GF 241FF 241EF 242FF 242GF 242HF 241MF 241LF 241KF 241JF 242KF 242LF and 242MF (Ref. AMM TASK 53-00-00-000-801).
(3) Remove the necessary lower sidewall panels between FR36 and FR46 (Ref. AMM TASK 25-23-44-000-001).
(4) Remove the necessary cabin air supply ducts installed above the floor structure between FR36 and FR46 (Ref. AMM TASK 21-20-00-010-001).
(5) Release and carefully pull back the necessary insulation blankets from the sides of the fuselage, below the floor level, between FR36 and FR46.
(6) Attach them temporarily to the fuselage structure above the floor level.
Subtask 53-31-00-110-118-A (1) Remove the necessary equipment and furnishing to get access to the cabin floor panels.
(2) Remove floor panels 241HF 241GF 241FF 241EF 242FF 242GF 242HF 241MF 241LF 241KF 241JF 242KF 242LF and 242MF (Ref. AMM TASK 53-00-00-000-801).
(3) Remove the necessary lower sidewall panels between FR36 and FR46 (Ref. AMM TASK 25-23-44-000-001).
(4) Remove the necessary cabin air supply ducts installed above the floor structure between FR36 and FR46 (Ref. AMM TASK 21-20-00-010-001).
(5) Release and carefully pull back the necessary insulation blankets from the sides of the fuselage, below the floor level, between FR36 and FR46.
(6) Attach them temporarily to the fuselage structure above the floor level.
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) Remove the TPS layer, if it does not let you do a satisfactory inspection (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 not, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Remove the TPS layer, if it does not let you do a satisfactory inspection (Ref. AMM TASK 51-78-00-916-001).
Subtask 53-31-00-210-080-A
A. General Visual Inspection
(2) Do a general visual inspection of the fuselage structure below the cabin floor panels, including the cabin floor structure between FR36 and FR46 for corrosion and other damage.
(3) If necessary, refer to the ASRM SRM 53311400 for the correct repair procedure.
Subtask 53-31-00-916-075-A WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) . Make sure that the area is dry before you continue. (2) Do a general visual inspection of the fuselage structure below the cabin floor panels, including the cabin floor structure between FR36 and FR46 for corrosion and other damage.
(3) If necessary, refer to the ASRM SRM 53311400 for the correct repair procedure.
B. Application of Temporary Protection System
(2) If there is a TPS layer, do a check of the condition and integrity of the TPS layer (Ref. AMM TASK 51-78-00-916-001).
(4) If you used solvents, high-pressure water, steam and/or cleaning agents to clean the TPS layer:
(a) Apply a full new layer of TPS on the inspection area, as recommended in the MPD (Ref. AMM TASK 51-78-00-916-001).
(b) If there is no TPS layer, apply a new layer of TPS on the inspection area, as recommended in the MPD (Ref. AMM TASK 51-78-00-916-001).
(5) Remove the masking paper or the masking tape.
5. Close-upWARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
DO NOT APPLY TEMPORARY PROTECTION ON THE OXYGEN SYSTEMS.
MAKE SURE THAT THE TEMPORARY PROTECTION DOES NOT GET:
(1) Apply masking paper or masking tape Adhesive Film Tape-Masking - - (Material No.05RDA1) on the equipment and fittings adjacent to the area. - ON COMPOSITE PARTS, CONTROL CABLES, PULLEYS,TEFLON BEARINGS.
- ON LUBRICATED SURFACES.
- IN DRAIN VALVES OR OTHER ORIFICES.
(2) If there is a TPS layer, do a check of the condition and integrity of the TPS layer (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. Make sure that the TPS layer is in the correct condition after the check. if the TPS is in the correct condition, apply a new layer as a spray on the remaining layer.
(3) Replace the damaged TPS layer with a new layer of TPS on the inspection area, as recommended in the MPD (Ref. AMM TASK 51-78-00-916-001). (4) If you used solvents, high-pressure water, steam and/or cleaning agents to clean the TPS layer:
(a) Apply a full new layer of TPS on the inspection area, as recommended in the MPD (Ref. AMM TASK 51-78-00-916-001).
(b) If there is no TPS layer, apply a new layer of TPS on the inspection area, as recommended in the MPD (Ref. AMM TASK 51-78-00-916-001).
(5) Remove the masking paper or the masking tape.
Subtask 53-31-00-410-090-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Release and fold down the insulation blankets and attach them in their initial positions.
(3) Install the cabin air supply ducts, removed to get acess to the cabin floor structure between FR36 and FR46 (Ref. AMM TASK 21-20-00-410-001).
(4) Install the lower sidewall panels between FR36 and FR46 (Ref. AMM TASK 25-23-44-400-001).
(5) Install floor panels 241HF 241GF 241FF 241EF 242FF 242GF 242HF 241MF 241LF 241KF 241JF 242KF 242LF and 242MF (Ref. AMM TASK 53-00-00-400-801).
(6) Install the equipment and furnishing, removed to get access to the cabin floor panels.
(7) 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) Release and fold down the insulation blankets and attach them in their initial positions.
(3) Install the cabin air supply ducts, removed to get acess to the cabin floor structure between FR36 and FR46 (Ref. AMM TASK 21-20-00-410-001).
(4) Install the lower sidewall panels between FR36 and FR46 (Ref. AMM TASK 25-23-44-400-001).
(5) Install floor panels 241HF 241GF 241FF 241EF 242FF 242GF 242HF 241MF 241LF 241KF 241JF 242KF 242LF and 242MF (Ref. AMM TASK 53-00-00-400-801).
(6) Install the equipment and furnishing, removed to get access to the cabin floor panels.
(7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.