W DOC AIRBUS | AMM A320F

Special Detailed Inspection (LFEC and ROTO) of Pressure Deck Membrane Upper Surface to Center Wing Box, under Titanium Angle Connection and Corner...


TASK 53-31-00-220-804-A
Special Detailed Inspection (LFEC and ROTO) of Pressure Deck Membrane Upper Surface to Center Wing Box, under Titanium Angle Connection and Corner...


WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 137
ZONE: 138
1. Reason for the Job
Refer to the MPD TASK: 533185-01
SPECIAL DETAILED INSPECTION (LFEC AND ROTO) OF PRESSURE DECK MEMBRANE UPPER SURFACE TO CENTER WING BOX, UNDER TITANIUM ANGLE CONNECTION AND CORNER BRACKETS AT FR 36
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 Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 2M (6 FT)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
137
BAY BETW AFT PART. BULKHEAD OF FWD CARGO
138
BAY BETW AFT PART. BULKHEAD OF FWD CARGO
131NW, 131PW, 132PW, 825
 D. Referenced Information
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 21-21-41-000-001-A
Removal of the Recirculation Filter Cartridge
TASK 21-21-41-400-001-A
Installation of the Recirculation Filter Cartridge
TASK 25-54-12-000-001-A
Removal of the Forward Cargo-Compartment Partition
TASK 25-54-12-400-001-A
Installation of the Forward Cargo-Compartment Partition
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 38-11-41-000-001-A
Removal of the Potable Water Tank
TASK 38-11-41-400-002-A
Installation of the Potable Water Tank
TASK 52-30-00-860-003-A
Open the FWD or Aft Cargo-Compartment Door with the Hand Pump
TASK 52-30-00-860-004-A
Close the FWD or Aft Cargo-Compartment Door with the Hand Pump
SRM 511100
SRM 512200
SRM 514200
NTM 533185
3. Job Set-up
Subtask 53-31-00-010-123-A ** ON A/C NOT FOR ALL
A. Get Access
   (1) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 825.
   (2) Open forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-003).
   (3) Remove partition panels 131NW, 131PW and 132PW (Ref. AMM TASK 25-54-12-000-001).
   (4) Remove the insulation blankets from the inspection area (Ref. AMM TASK 25-80-00-000-001).
   (5) Remove the necessary cabin air supply-ducts installed above the floor structure between FR35 and FR36 (Ref. AMM TASK 21-20-00-010-001).
   (6) Remove the recirculation filter (Ref. AMM TASK 21-21-41-000-001).
Subtask 53-31-00-010-123-B ** ON A/C NOT FOR ALL
A. Get Access
   (1) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 825.
   (2) Open forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-003).
   (3) Remove the potable water tank (3000 MM) (Ref. AMM TASK 38-11-41-000-001).
   (4) Remove partition panels 131NW, 131PW and 132PW (Ref. AMM TASK 25-54-12-000-001).
   (5) Remove the insulation blankets from the inspection area (Ref. AMM TASK 25-80-00-000-001).
   (6) Remove the necessary cabin air supply-ducts installed above the floor structure between FR35 and FR36 (Ref. AMM TASK 21-20-00-010-001).
   (7) Remove the recirculation filter (Ref. AMM TASK 21-21-41-000-001).
Subtask 53-31-00-110-151-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 not, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
   (3) Remove the fasteners from the aluminum angle at FR36 to examine the holes ( SRM 514200).
NOTE: The removal of the fasteners is applicable only to the ROTO test inspection.
4. Procedure
Subtask 53-31-00-220-068-A
A. Inspection
   (1) Do the special detailed inspection (LFEC and ROTO) from the upper surface of the pressure deck membrane to the center wing box for damage or discontinuities. Refer to NTM 533185.
   (2) Make a report of the damage after the NTM inspection:
     (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 damage types, classification and corrective action.
Subtask 53-31-00-420-056-A
B. Installation of the Fasteners
   (1) Refer to the installation drawing in the SRM identification section for the new fastener references.
   (2) Install the fasteners on the aluminum angle at FR36 in the examined holes ( SRM 514200).
NOTE: The installation of the fasteners is applicable only to the ROTO test inspection.
5. Close-up
Subtask 53-31-00-410-120-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the insulation blankets (Ref. AMM TASK 25-80-00-400-001).
   (3) Install the recirculation filter (Ref. AMM TASK 21-21-41-400-001).
   (4) Install the cabin air supply-ducts that you removed from the floor structure between FR35 and FR36 (Ref. AMM TASK 21-20-00-410-001).
   (5) Install forward cargo-compartment partitions 131NW, 131PW and 132PW (Ref. AMM TASK 25-54-12-400-001).
   (6) Close forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-004).
   (7) Remove the access platform(s).
   (8) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Subtask 53-31-00-410-120-B ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the insulation blankets (Ref. AMM TASK 25-80-00-400-001).
   (3) Install the recirculation filter (Ref. AMM TASK 21-21-41-400-001).
   (4) Install the cabin air supply-ducts that you removed from the floor structure between FR35 and FR36 (Ref. AMM TASK 21-20-00-410-001).
   (5) Install forward cargo-compartment partitions 131NW, 131PW and 132PW (Ref. AMM TASK 25-54-12-400-001).
   (6) Install the potable water tank (3000 MM) (Ref. AMM TASK 38-11-41-400-002).
   (7) Close forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-004).
   (8) Remove the access platform(s).
   (9) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.02 06:29:07 UTC