Detailed Inspection of Cabin Floor Structure between FR 12 and FR 21

TASK 53-11-00-210-049-A
Detailed Inspection of Cabin Floor Structure between FR 12 and FR 21

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

ZONE: 211
ZONE: 212
ZONE: 221
ZONE: 222
ZONE: 231
ZONE: 232

1. Reason for the Job
Refer to the MPD TASK: 531189-01
DETAILED INSPECTION OF CABIN FLOOR STRUCTURE BETWEEN FR 12 AND FR 21
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 5M (16 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
211	COCKPIT
212	COCKPIT
221	FWD CAB UTILITY AREA
222	FWD CAB UTILITY AREA
231	FWD PASSENGER COMPARTMENT
232	FWD PASSENGER COMPARTMENT
831, 841

D. Referenced Information

REFERENCE	DESIGNATION
TASK 51-78-00-916-001-A	Application of Temporary Protection System (TPS)
TASK 52-10-00-010-001-A	Opening of the Passenger/Crew Door
TASK 52-10-00-410-001-A	Closing of the Passenger/Crew Door
TASK 53-12-12-000-001-A	Removal of the Cabin Floor Panels from FR12 thru FR24
TASK 53-12-12-400-001-A	Installation of the Cabin Floor Panels from FR12 thru FR24
SRM 511100	(for corrective action)
SRM 512200	(for corrective action)
TASK 25-31-00-00	FORWARD GALLEY - DESCRIPTION AND OPERATION
TASK 25-41-00-00	FORWARD LAVATORIES - DESCRIPTION AND OPERATION
Floor Structure FR12 to FR21

3. Job Set-up
Subtask 53-11-00-010-083-A

A. Get Access
(1) Put an ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position at zone 831 (841).
(2) Open the forward passenger/crew door 831 ( 841), (Ref. AMM TASK 52-10-00-010-001).
(3) Remove the galleys and lavatories, if installed
To do this, refer to the para. Component Location in the applicable ATA 25 Description/Operation: for the galleys (Ref. AMM D/O 25-31-00-00), for the lavatories (Ref. AMM D/O 25-41-00-00). In this paragraph, you will find the cross-references of the removal/installation tasks.
(4) Remove the floor panels from FR12 to FR21 (Ref. AMM TASK 53-12-12-000-001).

Subtask 53-11-00-110-097-A

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).

4. Procedure
Subtask 53-11-00-220-063-A

A. Inspection

Floor Structure FR12 to FR21

(1) Do a detailed inspection of the structure of the cabin floor between FR12 and FR21.
(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 of corrosion, 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 511100 for damage classification and corrective action.

Subtask 53-11-00-916-060-A

B. Application of the Temporary Protection System

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 fitting 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 53-11-00-410-083-A

A. Close Access
(1) Install the floor panels from FR12 to FR21 (Ref. AMM TASK 53-12-12-400-001).
(2) Install the galleys and lavatories, if removed
To do this, refer to the para. Component Location in the applicable ATA 25 Description/Operation: for the galleys (Ref. AMM D/O 25-31-00-00), for the lavatories (Ref. AMM D/O 25-41-00-00). In this paragraph, you will find the cross-references of the removal/installation tasks.
(3) Close the forward passenger/crew door 831 (841), (Ref. AMM TASK 52-10-00-410-001).
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:28:44 UTC