DOC AIRBUS | AMM A320FInstallation of the Spherical Bearings of the No. 3 Slat
TASK 57-44-21-400-001-A
Installation of the Spherical Bearings of the No. 3 Slat
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 57-44-21-941-051-A
Subtask 57-44-21-420-051-A
Subtask 57-44-21-942-050-A
[Rev.10 from 2021]
2026.04.02 06:31:05 UTC
Installation of the Spherical Bearings of the No. 3 Slat
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
1. Reason for the Job- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 3M (10 FT) |
| No specific | AR | SPATULA - PLASTIC |
| No specific | AR | WARNING NOTICE(S) |
| No specific | Torque wrench: range to between 1.5 and 1.2 m.daN (132.74 and 106.19 lbf.in )  | |
| 98D27803500001 | 1 | LOCKING TOOL ZERO POS |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06AAA1) | Polysulfide Sealant_General Purpose Brushable - |
| (Material No.06AAB1) | Polysulfide Sealant-General Purpose Fillet - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 1 | TAB WASHER | AIPC 57-44-21-07-320 |
| 2 | NUT | AIPC 57-44-21-07-320 |
| 3 | NUT | AIPC 57-44-21-07-320 |
| 4 | TAB WASHER | AIPC 57-44-21-07-320 |
| 5 | SPHERICAL BEARING | AIPC 57-44-21-07-320 |
| 6 | NUT | AIPC 57-44-21-07-320 |
| 7 | TAB WASHER | AIPC 57-44-21-07-320 |
| 8 | SPHERICAL BEARING | AIPC 57-44-21-07-320 |
| 9 | SPHERICAL BEARING | AIPC 57-44-21-07-320 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-84-00-710-001-A | Operational Test of the Slat System |
| TASK 27-84-65-000-001-A | Removal of the No 3 Slat |
| TASK 27-84-65-400-002-A | Installation of the No 3 Slat |
Spherical Bearings of the No. 3 Slat - Location and DetailSubtask 57-44-21-941-051-A
A. Safety Precautions
(1) Make sure WARNING NOTICE(S) are in position in the cockpit to tell persons not to operate the flaps or slats.
(2) Make sure that the safety barriers are in position.
Subtask 57-44-21-860-050-A (1) Make sure WARNING NOTICE(S) are in position in the cockpit to tell persons not to operate the flaps or slats.
(2) Make sure that the safety barriers are in position.
B. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position below the applicable slat 3, zone 513(613).
(2) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS is installed on the slat/flap control lever.
(3) Make sure that the No. 3 slat has been removed (Ref. AMM TASK 27-84-65-000-001).
Subtask 57-44-21-865-051-A (1) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position below the applicable slat 3, zone 513(613).
(2) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS is installed on the slat/flap control lever.
(3) Make sure that the No. 3 slat has been removed (Ref. AMM TASK 27-84-65-000-001).
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/SLT/CTL/SYS2 | 7CV | R21 |
Subtask 57-44-21-420-051-A
A. Preparation For Installation
(1) Use a SPATULA - PLASTIC to remove the sealant from the component interfaces.
(2) Clean the component interfaces and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Do an inspection of the component interfaces and the adjacent area.
Subtask 57-44-21-420-050-A (1) Use a SPATULA - PLASTIC to remove the sealant from the component interfaces.
(2) Clean the component interfaces and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Do an inspection of the component interfaces and the adjacent area.
B. Installation of the Spherical Bearings of the No. 3 Slat
(1) Install the spherical bearing (9) at position D as follows:
(a) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the mating surfaces of the spherical bearing (9) and the slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (9).
(b) Install the new AIPC 57-44-21-07-320 SPHERICAL BEARING (9). Make sure that the spherical bearing housing aligns correctly with the projection on the slat rib.
(c) Install the new AIPC 57-44-21-07-320 TAB WASHER (1) and the new AIPC 57-44-21-07-320 NUT (2).
(d) TORQUE the nut (2) to between 1.5 and 1.2 m.daN (132.74 and 106.19 lbf.in ). Make sure that you can safety the nut (2) with the tab washer (1).
(e) Safety the nut (2) with the tab washer (1).
(f) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the nut (2), the tab washer (1) and the adjacent slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (9).
(2) Install the spherical bearing (8) at position D as follows:
(a) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the mating surfaces of the spherical bearing (8) and the slat structure. Make sure that the sealant does not go onto th internal surfaces of the spherical bearing (8).
(b) Install the new AIPC 57-44-21-07-320 SPHERICAL BEARING (8). Make sure that the spherical bearing housing aligns correctly with the projection on the slat rib.
(c) Install the new AIPC 57-44-21-07-320 TAB WASHER (7) and the new AIPC 57-44-21-07-320 NUT (6).
(d) TORQUE the nut (6) to between 1.5 and 1.2 m.daN (132.74 and 106.19 lbf.in ). Make sure that you can safety the nut (6) with the tab washer (7).
(e) Safety the nut (6) with the tab washer (7).
(f) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the nut (6), the tab washer (7) and the adjacent slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (8).
(3) Installthe spherical bearing (5) at position B as follows:
(a) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the mating surfaces of the spherical bearing (5) and the slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (5).
(b) Install the new AIPC 57-44-21-07-320 SPHERICAL BEARING (5). Make sure that the spherical bearing housing aligns correctly with the projection on the slat rib.
(c) Install the new AIPC 57-44-21-07-320 TAB WASHER (4) and the new AIPC 57-44-21-07-320 NUT (3).
(d) TORQUE the nut (3) to between 1.5 and 1.2 m.daN (132.74 and 106.19 lbf.in ). Make sure that you can safety the nut (3) with the tab washer (4).
(e) Safety the nut (3) with the tab washer (4).
(f) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the nut (3), the tab washer (4) and the adjacent slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (5).
Subtask 57-44-21-410-050-A (1) Install the spherical bearing (9) at position D as follows:
(a) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the mating surfaces of the spherical bearing (9) and the slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (9).
(b) Install the new AIPC 57-44-21-07-320 SPHERICAL BEARING (9). Make sure that the spherical bearing housing aligns correctly with the projection on the slat rib.
(c) Install the new AIPC 57-44-21-07-320 TAB WASHER (1) and the new AIPC 57-44-21-07-320 NUT (2).
(d) TORQUE the nut (2) to between 1.5 and 1.2 m.daN (132.74 and 106.19 lbf.in )
. Make sure that you can safety the nut (2) with the tab washer (1). (e) Safety the nut (2) with the tab washer (1).
(f) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the nut (2), the tab washer (1) and the adjacent slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (9).
(2) Install the spherical bearing (8) at position D as follows:
(a) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the mating surfaces of the spherical bearing (8) and the slat structure. Make sure that the sealant does not go onto th internal surfaces of the spherical bearing (8).
(b) Install the new AIPC 57-44-21-07-320 SPHERICAL BEARING (8). Make sure that the spherical bearing housing aligns correctly with the projection on the slat rib.
(c) Install the new AIPC 57-44-21-07-320 TAB WASHER (7) and the new AIPC 57-44-21-07-320 NUT (6).
(d) TORQUE the nut (6) to between 1.5 and 1.2 m.daN (132.74 and 106.19 lbf.in )
. Make sure that you can safety the nut (6) with the tab washer (7). (e) Safety the nut (6) with the tab washer (7).
(f) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the nut (6), the tab washer (7) and the adjacent slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (8).
(3) Installthe spherical bearing (5) at position B as follows:
(a) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the mating surfaces of the spherical bearing (5) and the slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (5).
(b) Install the new AIPC 57-44-21-07-320 SPHERICAL BEARING (5). Make sure that the spherical bearing housing aligns correctly with the projection on the slat rib.
(c) Install the new AIPC 57-44-21-07-320 TAB WASHER (4) and the new AIPC 57-44-21-07-320 NUT (3).
(d) TORQUE the nut (3) to between 1.5 and 1.2 m.daN (132.74 and 106.19 lbf.in )
. Make sure that you can safety the nut (3) with the tab washer (4). (e) Safety the nut (3) with the tab washer (4).
(f) Apply a bead of Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) to the nut (3), the tab washer (4) and the adjacent slat structure. Make sure that the sealant does not go onto the internal surfaces of the spherical bearing (5).
C. Preparation for Test
(1) Install the applicable No. 3 slat (Ref. AMM TASK 27-84-65-400-002).
(2) Make sure that the work area is clean and clear of tools and other items.
Subtask 57-44-21-865-052-A (1) Install the applicable No. 3 slat (Ref. AMM TASK 27-84-65-400-002).
(2) Make sure that the work area is clean and clear of tools and other items.
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 57-44-21-710-050-A 5. Close-up| 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/SLT/CTL/SYS2 | 7CV | R21 |
Subtask 57-44-21-942-050-A
A. Removal of Equipment
(1) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the slat/flap control lever.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the slat/flap control lever.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.