Detailed Inspection of Cabin Floor Structure and Structure below Aft Entrance Area, between FR66 and FR68 and Lateral Shear Plates between FR68 and FR70

TASK 53-41-00-210-835-A
Detailed Inspection of Cabin Floor Structure and Structure below Aft Entrance Area, between FR66 and FR68 and Lateral Shear Plates between FR68 and FR70

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

ZONE: 261
ZONE: 262

1. Reason for the Job
Refer to the MPD TASK: 534195-01
DETAILED INSPECTION OF CABIN FLOOR STRUCTURE AND STRUCTURE BELOW AFT ENTRANCE AREA; BETWEEN FR 66 AND FR 68 AND LATERAL SHEAR PLATES BETWEEN FR 68 AND FR 70.
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 -

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
261	AFT CABIN UTILITY AREA
262	AFT CABIN UTILITY AREA

C. Referenced Information

REFERENCE	DESIGNATION
TASK 25-22-41-000-001-A	Removal of the Wall-Mounted Cabin-Attendant Seats
TASK 25-22-41-400-001-A	Installation of the Wall-Mounted Cabin-Attendant Seats
TASK 25-22-42-000-001-A	Removal of the Free-Standing Cabin Attendant Seat (CAS)
TASK 25-22-42-400-001-A	Installation of the Free-Standing Cabin Attendant Seat (CAS)
TASK 51-73-11-300-001-A	Repair of Minor Damage on Aluminum Clad Components
TASK 51-73-11-300-004-A	Repair of Minor Damage on Unclad Components
TASK 51-74-11-300-001-A	Repair of Corroded Areas
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)
TASK 25-33-41-000-002-A	Removal of the Aft Galley Unit (for corrective action)
TASK 25-33-41-400-002-A	Installation of the Aft Galley Unit (for corrective action)
TASK 25-33-45-000-001-A	Removal of the Aft Galley Unit (for corrective action)
TASK 25-33-45-400-001-A	Installation of the Aft Galley Unit (for corrective action)
SRM 51110000	(for corrective action)
SRM 51111100	(for corrective action)
SRM 51220000	(for corrective action)
SRM 534114	(for corrective action)
TASK 06-41-53-00	FUSELAGE-DESCRIPTION AND OPERATION
Cabin Floor Structure - FR66 thru FR70
Lateral Shear Plates - Inspection Area

3. Job Set-up
Subtask 53-41-00-010-172-A

A. Get Access
(1) If necessary, remove the cabin attendant seat(s) (Ref. AMM TASK 25-22-41-000-001) or (Ref. AMM TASK 25-22-42-000-001).
(2) Remove the lower door-frame lining at FR68, left and right sides.
(3) Remove the side lateral-galley lining.
(4) If installed and if necessary, remove the aft galley (Ref. AMM TASK 25-33-41-000-001) or (Ref. AMM TASK 25-33-41-000-008) or (Ref. AMM TASK 25-33-45-000-001).

NOTE: The removal of the aft galley is only necessary if you cannot get access to the lateral shear plates.

(5) Remove the applicable floor panels between FR66 and FR70 (Ref. AMM D/O 06-41-53-00) and (Ref. AMM TASK 53-00-00-000-801).

Subtask 53-41-00-110-160-A

B. Preparation of the inspection area
(1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection.
(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
Subtask 53-41-00-210-136-A

A. Detailed Inspection Procedure
(1) Do a detailed visual inspection of the cabin floor structure and the structure below the aft entrance area. Do this between FR66 and FR68 and the lateral shear plates between FR68 and FR70.
(a) Make sure that you examine the floor structure.
(b) Look for corrosion and other damage to the metal parts.
(2) If you find corrosion damage:

Refer to the ASRM SRM 51220000 for the general corrosion protection data
Repair the corroded areas (Ref. AMM TASK 51-74-11-300-001).

(3) If you find damage to the metal parts:

Refer to the ASRM SRM 51110000 for the class of damage
Refer to the ASRM SRM 51111100 for the permitted damage limits
Repair the minor damage (Ref. AMM TASK 51-73-11-300-001) or (Ref. AMM TASK 51-73-11-300-004).

(4) If you find other damage to the metal parts that is more than the limits for minor damage, you must:
(a) Refer to the ASRM for the material details, item identification and the action/repair data:

For the floor structure, refer to the ASRM SRM 534114.

Subtask 53-41-00-916-089-A

B. Application of Temporary Protection System

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.

TEMPORARY PROTECTION ON OR IN THESE PARTS CAN CAUSE DAMAGE.

(1) Apply masking paper or masking tape Adhesive Film Tape-Masking - - (Material No.05RDA1) on the equipment and fittings adjacent to the area.
(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.

5. Close-up
Subtask 53-41-00-410-168-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable floor panels between FR66 to FR70 (Ref. AMM D/O 06-41-53-00) and (Ref. AMM TASK 53-00-00-400-801).
(3) If necessary, install the aft galley (Ref. AMM TASK 25-33-41-400-001) or (Ref. AMM TASK 25-33-41-400-008) or (Ref. AMM TASK 25-33-45-400-001).
(4) Install the side lateral-galley lining.
(5) Install the lower door-frame lining at FR68, left and right sides.
(6) If necessary, install the cabin attendant seat(s) (Ref. AMM TASK 25-22-41-400-001) (Ref. AMM TASK 25-22-42-400-001).

[Rev.10 from 2021] 2026.04.02 06:29:19 UTC