DOC AIRBUS | AMM A320FInstallation of the Closing Plates for the Slat Tracks 1 thru 12
TASK 27-84-69-400-001-A
Installation of the Closing Plates for the Slat Tracks 1 thru 12
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 27-84-69-941-053-A
Subtask 27-84-69-420-052-A
Subtask 27-84-69-410-051-A
[Rev.10 from 2021]
2026.03.31 23:58:21 UTC
Installation of the Closing Plates for the Slat Tracks 1 thru 12
WARNING:
MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.
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.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | WARNING NOTICE(S) |
| No specific | AR | WRENCH - PNEUMATIC |
| 98D27803500001 | 1 | LOCKING TOOL ZERO POS |
| 98D27803500002 | 1 | LOCKING TOOL ZERO POS |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.04PAD2) | Polyurethane Coating-- Abrasion Resistant Structure |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 510 | LEFT WING SLATS |
| 610 | RIGHT WING SLATS |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 2 | WASHERS | AIPC 27-84-05-41-100 |
| 2 | WASHERS | AIPC 27-84-05-42-040 |
| 2 | WASHERS | AIPC 27-84-05-43-023 |
| 2 | WASHERS | AIPC 27-84-05-44-030 |
| 2 | WASHERS | AIPC 27-84-05-45-030 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-80-00-866-005-A | Retracting the Slats on the Ground |
| TASK 27-80-00-866-007-A | Manual Extension of the Slats |
| TASK 27-80-00-866-008-A | Manual Retraction of the Slats |
Subtask 27-84-69-941-053-A
A. Safety Precautions
(2) Make sure that the WARNING NOTICE(S) is in the cockpit to tell persons not to operate the slat controls.
Subtask 27-84-69-860-052-A WARNING:
BEFORE YOU START WORK, YOU MUST PUT ON A SAFETY HARNESS AND ATTACH IT TO THE ACCESS PLATFORM. WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.
(1) Make sure that the SAFETY BARRIER(S) are in position. (2) Make sure that the WARNING NOTICE(S) is in the cockpit to tell persons not to operate the slat controls.
B. Aircraft Maintenance Configuration
(2) Make sure that the slats are fully extended (Ref. AMM TASK 27-80-00-866-007).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the applicable slat track.
Subtask 27-84-69-865-050-A 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.
(1) Make sure the 98D27803500001 LOCKING TOOL ZERO POS or 98D27803500002 LOCKING TOOL ZERO POS is installed on the flap/slat control lever. (2) Make sure that the slats are fully extended (Ref. AMM TASK 27-80-00-866-007).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the applicable slat track.
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/WTB/SLT/SYS2 | 11CV | P19 |
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
| 122VU | FLIGHT CONTROLS/WTB/SLT/SYS1 | 9CV | S06 |
Subtask 27-84-69-420-052-A
A. Preparation for Installation
(1) Clean the component interface and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
Subtask 27-84-69-420-050-B (1) Clean the component interface and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
B. Installation of the Closing Plates
Closing Plates for Tracks 1 thru 12 - Detail and Location ** ON A/C NOT FOR ALL
Closing Plates for Tracks 1 thru 12 - Detail and Location ** ON A/C NOT FOR ALL
(1) Install the closing plates (4) for slat tracks 1 thru 4 as follow:
(a) Put the screws (5) through their related closing plates (4).
(b) Put the spacers (3) on their related screws (5).
(c) Put the closing plates (4) in position.
(d) Tighten the screws (5) to the nut strips (1) with your hand.
(e) Use the WRENCH - PNEUMATIC and slowly retract the slats to the datum zero position.
(f) Make sure that dimension Z is between 0.25 mm (0.0098 in.) and 0.50 mm (0.0197 in.).
1 If dimension Z is less than 0.25 mm (0.0098 in.), do the steps that follow:
a Remove the nut strips (1) from the screws (5).
b Install the AIPC 27-84-05-41-100 WASHERS (2), as necessary, on the screws (5).
c Tighten the screws (5) to the nut strips (1).
a Tighten the screws (5) until you get the correct dimension Z.
(2) Install the closing plates (4) for slat tracks 5 thru 12 as follow:
(a) Put the screws (5) through their related closing plates (4).
(b) Put the spacers (3) on their related screws (5).
(c) Put the closing plate (4) in position.
(d) Tighten the screws (5) to the nut strips (1) with your hand.
(e) Use the WRENCH - PNEUMATIC and slowly retract the slats to the datum zero position.
(f) Make sure that dimension Z is between 0.25 mm (0.0098 in.) and 0.50 mm (0.0197 in.).
1 If dimension Z is less than 0.25 mm (0.0098 in.), do the steps that follow:
a Remove the nut strips (1) from the screws (5).
b Install the washers (2), as necessary, on the screws (5):
a Tighten the screws (5) until you get the correct dimension Z.
(3) Use the WRENCH - PNEUMATIC and extend the slats to the fully extended position.
(4) Apply the paint as follows:
Where the closing plate (4) makes an overlap with the leading edge surface, the structure paint must make an overlap of 18 mm (0.71 in.).
(b) Let the paint dry (approximately 24hrs at room temperature).
Subtask 27-84-69-860-051-A Closing Plates for Tracks 1 thru 12 - Detail and Location ** ON A/C NOT FOR ALL Closing Plates for Tracks 1 thru 12 - Detail and Location ** ON A/C NOT FOR ALL (a) Put the screws (5) through their related closing plates (4).
(b) Put the spacers (3) on their related screws (5).
(c) Put the closing plates (4) in position.
(d) Tighten the screws (5) to the nut strips (1) with your hand.
(e) Use the WRENCH - PNEUMATIC and slowly retract the slats to the datum zero position.
(f) Make sure that dimension Z is between 0.25 mm (0.0098 in.) and 0.50 mm (0.0197 in.).
1 If dimension Z is less than 0.25 mm (0.0098 in.), do the steps that follow:
a Remove the nut strips (1) from the screws (5).
b Install the AIPC 27-84-05-41-100 WASHERS (2), as necessary, on the screws (5).
c Tighten the screws (5) to the nut strips (1).
NOTE: You can use more than one washer (2) to get the correct dimension Z.
2 If dimension Z is more than 0.50 mm (0.0197 in.), do the step that follows: a Tighten the screws (5) until you get the correct dimension Z.
(2) Install the closing plates (4) for slat tracks 5 thru 12 as follow:
(a) Put the screws (5) through their related closing plates (4).
(b) Put the spacers (3) on their related screws (5).
(c) Put the closing plate (4) in position.
(d) Tighten the screws (5) to the nut strips (1) with your hand.
(e) Use the WRENCH - PNEUMATIC and slowly retract the slats to the datum zero position.
(f) Make sure that dimension Z is between 0.25 mm (0.0098 in.) and 0.50 mm (0.0197 in.).
1 If dimension Z is less than 0.25 mm (0.0098 in.), do the steps that follow:
a Remove the nut strips (1) from the screws (5).
b Install the washers (2), as necessary, on the screws (5):
- For slat tracks 5 and 6, AIPC 27-84-05-42-040 WASHERS (2).
- For slat tracks 7 and 8, AIPC 27-84-05-43-023 WASHERS (2).
- For slat tracks 9 and 10, AIPC 27-84-05-44-030 WASHERS (2).
- For slat tracks 11 and 12, AIPC 27-84-05-45-030 WASHERS (2).
NOTE: You can use more than one washer (2) to get the correct dimension Z.
2 If dimension Z is more than 0.50 mm (0.0197 in.), do the step that follows: a Tighten the screws (5) until you get the correct dimension Z.
(3) Use the WRENCH - PNEUMATIC and extend the slats to the fully extended position.
(4) Apply the paint as follows:
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(a) Apply a layer of Polyurethane Coating-- Abrasion Resistant Structure (Material No.04PAD2) that agrees with the external color scheme to the slat track closing plate (4). Where the closing plate (4) makes an overlap with the leading edge surface, the structure paint must make an overlap of 18 mm (0.71 in.).
(b) Let the paint dry (approximately 24hrs at room temperature).
NOTE: Let the structure paint dry before you retract the slats.
C. Aircraft Maintenance Configuration
(1) Retract the slats manually (Ref. AMM TASK 27-80-00-866-008).
5. Close-up(1) Retract the slats manually (Ref. AMM TASK 27-80-00-866-008).
Subtask 27-84-69-410-051-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
Subtask 27-84-69-865-052-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 27-84-69-866-054-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/WTB/SLT/SYS2 | 11CV | P19 |
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
| 122VU | FLIGHT CONTROLS/WTB/SLT/SYS1 | 9CV | S06 |
C. Aircraft Maintenance Configuration
(1) Make sure that the slats are in the fully retracted position (Ref. AMM TASK 27-80-00-866-005).
(2) Remove the 98D27803500001 LOCKING TOOL ZERO POS or 98D27803500002 LOCKING TOOL ZERO POS from the flap/slat control lever.
Subtask 27-84-69-942-050-A (1) Make sure that the slats are in the fully retracted position (Ref. AMM TASK 27-80-00-866-005).
(2) Remove the 98D27803500001 LOCKING TOOL ZERO POS or 98D27803500002 LOCKING TOOL ZERO POS from the flap/slat control lever.
D. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Remove the safety barriers.
(2) Remove the WARNING NOTICE(S).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.