Detailed Inspection of Fuselage Internal Structure Including Forward Face of Pressure Bulkhead, from Stringer 38 LH/RH to Bottom Centerline

TASK 53-21-00-200-013-B
Detailed Inspection of Fuselage Internal Structure Including Forward Face of Pressure Bulkhead, from Stringer 38 LH/RH to Bottom Centerline

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 133
ZONE: 134
ZONE: 137
ZONE: 138

1. Reason for the Job
Refer to the MPD TASK: 532180-01
DETAILED INSPECTION OF FUSELAGE INTERNAL STRUCTURE INCLUDING FORWARD FACE OF PRESSURE BULKHEAD, FROM STRINGER 38 LH/RH TO BOTTOM CENTERLINE

NOTE: Inspection between FR 24 and FR 35.8. Type 2 TPS may be limited to fuselage internal structure from FR 35.7 to FR 35.8, and forward face of pressure bulkhead, from stringer 38 LH/RH to bottom centerline.

NOTE: The effectivity of this task is "ALL". To know if this task is applicable for your aircraft, refer to the MPD task applicability and the weight variant data given in the SRM introduction.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	PAPER - MASKING

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05RDA1)	Adhesive Film Tape-Masking - -
(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 -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
133	BAY UNDER FWD CAR COMPT FLOOR
134	BAY UNDER FWD CAR COMPT FLOOR
137	BAY BETW AFT PART. BULKHEAD OF FWD CARGO
138	BAY BETW AFT PART. BULKHEAD OF FWD CARGO
825

D. Referenced Information

REFERENCE	DESIGNATION
TASK 51-78-00-916-001-A	Application of Temporary Protection System (TPS)
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 53-22-14-000-001-A	Removal of the Forward Cargo-Compartment Floor-Panels
TASK 53-22-14-000-002-A	Removal of the Maintenance Panels at Frame 35.5
TASK 53-22-14-400-001-A	Installation of the Forward Cargo-Compartment Floor-Panels
TASK 53-22-14-400-001-A-01	Installation of the Forward Cargo-Compartment Floor-Panels (Alternative Installation Procedure with the Skyflex Option)
TASK 53-22-14-400-002-A	Installation of the Maintenance Panels at Frame 35.5
SRM 511100	(for corrective action)
SRM 512200	(for corrective action)
Fuselage Internal Structure between FR24 and FR35.8 from STGR38 to bottom Centerline, Left and Right Sides

3. Job Set-up
Subtask 53-21-00-010-092-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the forward cargo compartment door 825.
(2) Open the forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-001).
(3) Remove the necessary FWD cargo-compartment floor panels to get access to the inspection areas (Ref. AMM TASK 53-22-14-000-001) (Ref. AMM TASK 53-22-14-000-002).

Subtask 53-21-00-110-079-A ** ON A/C NOT FOR ALL

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 it is 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 Temporary Protection System (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).

NOTE: During the inspection, if you find sealant cracked or in bad condition, or with the edges separated from the structure, you must remove and replace sealant.

4. Procedure
Subtask 53-21-00-220-072-A ** ON A/C NOT FOR ALL

A. Inspection

Fuselage Internal Structure between FR24 and FR35.8 from STGR38 to bottom Centerline, Left and Right Sides ** ON A/C NOT FOR ALL

(1) Do a detailed inspection of the fuselage internal structure between FR24 and FR35.8 from STGR38 to the bottom centerline (left and right sides). This inspection includes the forward face of the pressure bulkhead.
(2) Make sure that there is no:
(a) Corrosion damage:

If you find corrosion damage, refer to the Structural Repair Manual SRM 512200 for types, inspection, removal and 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 damage classification and corrective action.

Subtask 53-21-00-916-060-A ** ON A/C NOT FOR ALL

B. Application of Temporary Protection System

Fuselage Internal Structure between FR24 and FR35.8 from STGR38 to bottom Centerline, Left and Right Sides ** ON A/C NOT FOR ALL

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.

TEMPORARY PROTECTION ON OR IN THESE PARTS CAN CAUSE DAMAGE.

CAUTION: DO NOT APPLY TEMPORARY PROTECTION SYSTEM (TPS) TYPE 3 ON THE MOVABLE COMPONENTS. USE ONLY TPS TYPE 1 GRADE 2. IF YOU DO NOT OBEY THIS INSTRUCTION, THE MECHANISMS WILL NOT OPERATE CORRECTLY.

(1) If there is a TPS layer, do a check of the condition 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. If, after the check, you think that the TPS layer is in the correct condition, you can apply a new layer as a spray on the existing layer.

(2) Apply PAPER - MASKING or Adhesive Film Tape-Masking - - (Material No.05RDA1) on the equipment and fittings adjacent to the area.
(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) on the inspection area (Ref. AMM TASK 51-78-00-916-001).
(4) If, before the inspection, there was:

Removal of the TPS layer or
Cleaning of the inspection area with high-pressure water, steam, solvents and/or cleaning agents

Apply a full new layer of Corrosion Preventive Compound-Water Displacing & Heavy Duty Hard Film - (Material No.12ADB1) on the inspection area (Ref. AMM TASK 51-78-00-916-001).
(5) Remove the PAPER - MASKING or the Adhesive Film Tape-Masking - - (Material No.05RDA1) .

5. Close-up
Subtask 53-21-00-410-075-A ** ON A/C NOT FOR ALL

A. Installation of the Components
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the FWD cargo-compartment floor panels (Ref. AMM TASK 53-22-14-400-001) (Ref. AMM TASK 53-22-14-400-002).

Subtask 53-21-00-942-077-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close the forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-002).
(2) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:28:57 UTC