DOC AIRBUS | AMM A320FDetailed Inspection of Fuselage Internal Structure and Lower Surface of Cabin Floor Structure from FR15 to FR21, between STRG 23 and STRG 28, LH/RH
TASK 53-11-00-210-035-A
Detailed Inspection of Fuselage Internal Structure and Lower Surface of Cabin Floor Structure from FR15 to FR21, between STRG 23 and STRG 28, LH/RH
Refer to the MPD TASK: 531181-01
DETAILED INSPECTION OF FUSELAGE INTERNAL STRUCTURE AND LOWER SURFACE OF CABIN FLOOR STRUCTURE FROM FR 15 TO FR 21, BETWEEN STRINGER 23 AND STRINGER 28 LH/RH
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 53-11-00-010-075-A
Subtask 53-11-00-220-051-A
Subtask 53-11-00-410-075-A
[Rev.10 from 2021]
2026.04.02 06:28:43 UTC
Detailed Inspection of Fuselage Internal Structure and Lower Surface of Cabin Floor Structure from FR15 to FR21, between STRG 23 and STRG 28, LH/RH
WARNING:
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:
- ON COMPOSITE PARTS, CONTROL CABLES, PULLEYS,TEFLON BEARINGS.
- ON LUBRICATED SURFACES.
- IN DRAIN VALVES OR OTHER ORIFICES.
ZONE: 129
1. Reason for the JobRefer to the MPD TASK: 531181-01
DETAILED INSPECTION OF FUSELAGE INTERNAL STRUCTURE AND LOWER SURFACE OF CABIN FLOOR STRUCTURE FROM FR 15 TO FR 21, BETWEEN STRINGER 23 AND STRINGER 28 LH/RH
NOTE: Type 2 Temporary Protection System (TPS) can only be installed on the lower surface of the cabin floor structure between FR15 and FR21.
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 | AR | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.12ADB1) | Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 129 | STAIR BAY |
| 812, 824 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 25-80-00-000-001-A | Removal of the Insulation Blankets |
| TASK 25-80-00-400-001-A | Installation of the Insulation Blankets |
| 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 |
| 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 511100 | (for corrective action) |
| SRM 512200 | (for corrective action) |
Fuselage Internal Structure from FR15 to FR21, between STGR23 and STGR28, left and right sidesSubtask 53-11-00-010-075-A
A. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at zone 121 (122).
(2) Open lateral avionics compartment doors 812 and 824 (Ref. AMM TASK 52-41-00-010-002).
(3) Remove the necessary floor panels from FR15 to FR21 to get access to the inspection area (Ref. AMM TASK 53-00-00-000-801).
(4) Remove the necessary insulation blankets to get access to the inspection area (Ref. AMM TASK 25-80-00-000-001).
Subtask 53-11-00-110-083-A (1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at zone 121 (122).
(2) Open lateral avionics compartment doors 812 and 824 (Ref. AMM TASK 52-41-00-010-002).
(3) Remove the necessary floor panels from FR15 to FR21 to get access to the inspection area (Ref. AMM TASK 53-00-00-000-801).
(4) Remove the necessary insulation blankets to get access to the inspection area (Ref. AMM TASK 25-80-00-000-001).
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 - Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - 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. 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 - Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - 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).
Subtask 53-11-00-220-051-A
A. Inspection
(1) Do a detailed inspection of the internal structure of the fuselage and the lower surface of the cabin floor, from FR15 to FR21, between STGR23 and STGR28, left and right sides for damage or discontinuities.
(2) Make sure that there is no:
(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 53-11-00-916-054-A (1) Do a detailed inspection of the internal structure of the fuselage and the lower surface of the cabin floor, from FR15 to FR21, between STGR23 and STGR28, left and right sides for damage or discontinuities.
(2) Make sure that there is no:
(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.
B. Check and Application of the TPS layer
(1) If the TPS was removed at the "Preparation of the Inspecion Area", apply a new layer of Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film - (Material No.12ADB1) . Refer to AMM tasks (Ref. AMM TASK 51-78-00-916-001).
(2) If the TPS was not removed at the "Preparation of the Inspection Area", do a check of the condition and integrity of the TPS layer. Refer to AMM tasks (Ref. AMM TASK 51-78-00-916-001).
(3) If the TPS layer has local damage, remove the damaged TPS layer and apply a new layer of Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film - (Material No.12ADB1) . Refer to AMM tasks (Ref. AMM TASK 51-78-00-916-001).
5. Close-up(1) If the TPS was removed at the "Preparation of the Inspecion Area", apply a new layer of Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film - (Material No.12ADB1) . Refer to AMM tasks (Ref. AMM TASK 51-78-00-916-001).
(2) If the TPS was not removed at the "Preparation of the Inspection Area", do a check of the condition and integrity of the TPS layer. Refer to AMM tasks (Ref. AMM TASK 51-78-00-916-001).
(3) If the TPS layer has local damage, remove the damaged TPS layer and apply a new layer of Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film - (Material No.12ADB1) . Refer to AMM tasks (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.
Subtask 53-11-00-410-075-A
A. Close Access
(1) Install the insulation blankets (Ref. AMM TASK 25-80-00-400-001).
(2) Install the removed floor panels from FR15 to FR21 (Ref. AMM TASK 53-00-00-400-801).
(3) Close lateral avionics compartment doors 812 and 824 (Ref. AMM TASK 52-41-00-410-002).
(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.
(1) Install the insulation blankets (Ref. AMM TASK 25-80-00-400-001).
(2) Install the removed floor panels from FR15 to FR21 (Ref. AMM TASK 53-00-00-400-801).
(3) Close lateral avionics compartment doors 812 and 824 (Ref. AMM TASK 52-41-00-410-002).
(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.