DOC AIRBUS | AMM A320FPrepare THS LE for Paint Application
TASK 55-12-11-100-002-A
Prepare THS LE for Paint Application
To clean the Trimmable Horizontal Stabilizer leading edge and to repair the paint areas.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Referenced Information
3. Job Set-up
Subtask 55-12-11-860-053-A
Subtask 55-12-11-110-053-A
Subtask 55-12-11-210-055-A
[Rev.10 from 2021]
2026.04.01 02:04:48 UTC
Prepare THS LE for Paint Application
WARNING:
MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING:
YOU MUST PUT ON AND ATTACH A SAFETY HARNESS BEFORE YOU START WORK:
- ON THE THS OR IN THE REAR FUSELAGE
- ON TOP OF THE WINGS OR PYLONS.
WARNING:
MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
DO NOT CAUSE DAMAGE TO THE SURFACES. THE COMPONENTS ARE MADE OF CARBONFIBER REINFORCED PLASTIC.
1. Reason for the JobTo clean the Trimmable Horizontal Stabilizer leading edge and to repair the paint areas.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 4M (13 FT) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 98D27903500000 | 2 | PIN-SIDE STICK LOCKING |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14FAB1) | Abrasive-- Scotch Brite Pads - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 29-10-00-864-001-A | Depressurize the Green Hydraulic System |
| TASK 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-10-00-864-003-A | Depressurize the Blue Hydraulic System |
| TASK 51-75-12-300-001-A | Repair of Major Paint Damage on Light Alloy and Composite Material |
Cleaning/Repair AreaSubtask 55-12-11-860-053-A
A. Depressurize Hydraulic Systems
(1) Depressurize the Green, Yellow and Blue hydraulic systems (Ref. AMM TASK 29-10-00-864-001) (Ref. AMM TASK 29-10-00-864-002) (Ref. AMM TASK 29-10-00-864-003).
Subtask 55-12-11-865-058-A (1) Depressurize the Green, Yellow and Blue hydraulic systems (Ref. AMM TASK 29-10-00-864-001) (Ref. AMM TASK 29-10-00-864-002) (Ref. AMM TASK 29-10-00-864-003).
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 55-12-11-481-053-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |
C. Install Locking Devices
(1) Put the 98D27903500000 PIN-SIDE STICK LOCKING in the CAPT and F/O side stick controllers.
Subtask 55-12-11-941-053-A (1) Put the 98D27903500000 PIN-SIDE STICK LOCKING in the CAPT and F/O side stick controllers.
D. Safety Precautions
(1) Put the WARNING NOTICE(S) in the flight compartment to tell persons not to operate the flight controls.
(2) Put the WARNING NOTICE(S) in position to tell persons not to operate the hydraulic systems.
(3) Put the ACCESS PLATFORM 4M (13 FT) in position at zone 334 for the left hand trimmable horizontal stabilizer leading edge and/or zone 344 for the right hand trimmable horizontal stabilizer leading edge.
4. Procedure(1) Put the WARNING NOTICE(S) in the flight compartment to tell persons not to operate the flight controls.
(2) Put the WARNING NOTICE(S) in position to tell persons not to operate the hydraulic systems.
(3) Put the ACCESS PLATFORM 4M (13 FT) in position at zone 334 for the left hand trimmable horizontal stabilizer leading edge and/or zone 344 for the right hand trimmable horizontal stabilizer leading edge.
Subtask 55-12-11-110-053-A
A. Cleaning.
(3) Carefully dry the area with a new, dry, lint free cloth.
Subtask 55-12-11-370-051-A CAUTION:
USE ONLY THE SPECIFIED MATERIALS AND OBEY THE INSTRUCTIONS FROM THE MATERIAL MANUFACTURERS. OTHER MATERIALS CAN CAUSE DAMAGE TO THE SURFACE PROTECTION OF THE COMPONENTS AND THE RELATED AREA.
(1) Clean the leading edge surface with a Textile-Lint free Cotton - (Material No.14SBA1) and Non Aqueous Cleaner-General - - (Material No.08BAA9) . - Apply the Non Aqueous Cleaner-General - - (Material No.08BAA9) to the cloth, not the cloth to the Non Aqueous Cleaner-General - - (Material No.08BAA9) . This will prevent the transfer of contamination.
- Carefully clean a small area at a time and remove the Non Aqueous Cleaner-General - - (Material No.08BAA9) before it becomes dry. Use a new lint free cloth frequently to make sure that the dirt and contamination is not put back on the surface.
- If necessary use a soft brush to clean out any holes.
(3) Carefully dry the area with a new, dry, lint free cloth.
B. Treatment before Painting
(2) If necessary, carefully smooth the surface to be painted with a Abrasive-- Scotch Brite Pads - (Material No.14FAB1) and Non Aqueous Cleaner-General - - (Material No.08BAA9) . Make sure that the primer layer does not show.
(3) Remove the abrasive grit and clean the surface with a new Abrasive-- Scotch Brite Pads - (Material No.14FAB1) and Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(4) Remove the Non Aqueous Cleaner-General - - (Material No.08BAA9) before it becomes dry, make sure you do not touch the prepared surface with your hand.
(5) Apply paint to the prepared area on the THS LE (Ref. AMM TASK 51-75-12-300-001).
5. Close-upNOTE: Only the leading edge areas not covered by the stainless steel anti-erosion sections are painted. The stainless steel anti-erosion sections are not painted.
(1) If the paint or primer layers are damaged do a repair (Ref. AMM TASK 51-75-12-300-001). (2) If necessary, carefully smooth the surface to be painted with a Abrasive-- Scotch Brite Pads - (Material No.14FAB1) and Non Aqueous Cleaner-General - - (Material No.08BAA9) . Make sure that the primer layer does not show.
(3) Remove the abrasive grit and clean the surface with a new Abrasive-- Scotch Brite Pads - (Material No.14FAB1) and Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(4) Remove the Non Aqueous Cleaner-General - - (Material No.08BAA9) before it becomes dry, make sure you do not touch the prepared surface with your hand.
(5) Apply paint to the prepared area on the THS LE (Ref. AMM TASK 51-75-12-300-001).
Subtask 55-12-11-210-055-A
A. Visual Inspection
(1) Make sure that the work area is clean and clear of tools and other items.
Subtask 55-12-11-942-055-A (1) Make sure that the work area is clean and clear of tools and other items.
B. Remove Ground Equipment
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Subtask 55-12-11-081-053-A (1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
C. Remove Locking Devices
(1) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the CAPT and F/O side stick controllers.
Subtask 55-12-11-865-059-A (1) Remove the 98D27903500000 PIN-SIDE STICK LOCKING from the CAPT and F/O side stick controllers.
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |