W DOC AIRBUS | AMM A320F

Removal of the No 3 Slat


TASK 27-84-65-000-001-A
Removal of the No 3 Slat


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.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
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: 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: 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.
CAUTION: THIS PART IS A REMOVABLE STRUCTURAL COMPONENT (RSC), WHICH CAN BE MOVED BETWEEN AIRCRAFT. THUS IT CAN HAVE DIFFERENT OPERATION CONDITIONS AND A DIFFERENT LIFE RECORD (FLIGHT HOURS/FLIGHT CYCLES/CALENDAR) FROM THE AIRCRAFT IT IS INSTALLED ON OR REMOVED FROM. THE OPERATOR IS RESPONSIBLE FOR THE SPECIFIC TRACKING AND CONTINUED AIRWORTHINESS OF REMOVABLE STRUCTURAL COMPONENTS. INCORRECT MAINTENANCE OF THESE COMPONENTS CAN CAUSE A RISK FOR THE FLIGHT SAFETY.
ZONE: 510
ZONE: 610
1. Reason for the Job
Self 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
COVER - BLANKING
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
SUPPORT STRUCTURE - FLAP
No specific
AR
WARNING NOTICE(S)
No specific
AR
WRENCH - PNEUMATIC
98D27803000000
1
LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION
98D27804001000
1
ADAPTOR-DRIVE, SLAT (AND FLAP)
98D27804009001
1
SLATS - SLING
98F27508498000
AR
HOIST-R I,FLAP SLAT
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
510
LEFT WING SLATS
610
RIGHT WING SLATS
522NB, 622NB
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 27-50-00-000-003-A
Removal of the Lock-Torque Shaft - Flaps and Slats (98D27504030001)
TASK 27-50-00-400-003-A
Installation of the Lock-Torque Shaft - Flaps and Slats (98D27504030001)
TASK 27-80-00-000-001-A
Removal of the Hoisting Sling
TASK 27-80-00-400-001-A
Installation of the Hoisting Sling
TASK 27-80-00-860-801-A
Readout of the Slat Position Pickoff Unit (PPU) Data
TASK 27-80-00-866-005-A
Retracting the Slats on the Ground
TASK 27-84-45-000-004-A
Removal of the Torque Shafts 6010CM and 6060CM
TASK 27-84-69-000-001-A
Removal of the Closing Plates for the Slat Tracks 1 thru 12
TASK 30-11-41-000-001-A
Removal of the Telescopic Duct
TASK 57-41-37-000-006-A
Removal of the Access Panels
3. Job Set-up
Subtask 27-84-65-941-050-A
A. Safety Precautions
   (1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
   (2) Retract the slats:
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.
     (a) Make sure the slats are fully retracted (Ref. AMM TASK 27-80-00-866-005).
   (3) On the flap/slat control lever on panel 114VU, install 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION.
   (4) In the cockpit, put WARNING NOTICE(S) to tell persons not to operate the slat controls.
Subtask 27-84-65-860-055-A
B. Readout of the PPU Data
   (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
   (2) Do the readout of the PPU data (Ref. AMM TASK 27-80-00-860-801).
NOTE: Airbus recommends to do the readout and recording of the PPU angles before the maintenance action.
In case of a loss of the torque shaft fixture you can put the slat transmission system back to the initial condition (without a complete adjustment of the system).
   (3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 27-84-65-865-050-A
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/WTB/SLT/SYS211CVP19
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
122VUFLIGHT CONTROLS/WTB/SLT/SYS19CVS06
Subtask 27-84-65-010-051-A
D. Get Access
   (1) Put the adjustable ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the zone.
   (2) Remove the applicable access panel (Ref. AMM TASK 57-41-37-000-006):
     (a) For the left wing, remove 522NB.
     (b) For the right wing, remove 622NB.
   (3) Remove the applicable torque shaft (Ref. AMM TASK 27-84-45-000-004):
     (a) For the left wing, remove [6010CM]
     (b) For the right wing, remove [6060CM]
   (4) Install the 98D27804001000 ADAPTOR-DRIVE, SLAT (AND FLAP) and a WRENCH - PNEUMATIC on the applicable bevel gearbox:
     (a) For the left wing, use [6010CM]
     (b) For the right wing, use [6060CM]
NOTE: This will let you operate the slats manually.
   (5) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT, installed outboard of the removed torque shaft FIN 6010CM (6060CM) (Ref. AMM TASK 27-50-00-000-003).
   (6) Manually extend the slats to the fully extended position.
   (7) Install the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT outboard of the removed torque shaft FIN 6010CM (6060CM) (Ref. AMM TASK 27-50-00-400-003).
   (8) Remove the applicable telescopic duct (Ref. AMM TASK 30-11-41-000-001).
   (9)    (10) Remove the slat closing plate (Ref. AMM TASK 27-84-69-000-001).
Subtask 27-84-65-480-051-A
E. Installation of Support Equipment
   (1) Install the 98D27804009001 SLATS - SLING (Ref. AMM TASK 27-80-00-400-001) or the 98F27508498000 HOIST-R I,FLAP SLAT.
4. Procedure
Subtask 27-84-65-020-051-A
A. Removal of the No 3 Slat
   (1) Lift the 98D27804009001 SLATS - SLING or the 98F27508498000 HOIST-R I,FLAP SLAT sufficiently, until it takes the weight of the slat.
   (2) At the interface of the No 2 and 3 slats and the No 3 and 4 slats:
     (a) Remove the nut (6), bolt (9) and washer (8). Then move the bonding strap (7) away from the bonding tag.
     (b) Remove the screws (1) and the stops (3).
     (c) Remove the weather seal (2).
   (3) At the interface of the No 3 and 4 slats only:
     (a) Loosen the clamps (5) and then remove the flexible tube (4) and the clamps (5).
     (b) Install COVER - BLANKING on the open ends of the anti-icing ducts.
   (4) At the No 7 and 8 slat tracks:
     (a) Remove and discard the cotter pins (18) from the nuts (29), (46), (54) and (55).
     (b) Loosen the nuts (29), (46), (54) and (55) but do not remove them.
     (c) Remove and discard the cotter pins (18) from the nuts (22), (26), (48) and (50).
     (d) Make sure that when the nut (22) is removed, the head of the bolt (24) is in contact with the web of the lug. If not, damage can occur to the anti-rotation:
       1 Remove the nut (22), washer (23), bolt (24) and bush (17).
NOTE: The bush (17) is a part of the slat track and the slat track linkage assembly.
     (e) Remove the nut (26), washer (27) and bolt (19).
     (f) Remove the nut (48), washer (47) and bolt (40).
     (g) Remove the nut (50), washer (49) and bolt (41).
   (5) Lift the slat from the slat tracks.
   (6) Move the slat with the 98D27804009001 SLATS - SLING or the 98F27508498000 HOIST-R I,FLAP SLAT and lower it onto the SUPPORT STRUCTURE - FLAP.
Subtask 27-84-65-860-053-A
B. Aircraft Maintenance Configuration
   (1) If you install a new slat, remove the 98D27804009001 SLATS - SLING (Ref. AMM TASK 27-80-00-000-001) or the 98F27508498000 HOIST-R I,FLAP SLAT.
[Rev.10 from 2021] 2026.03.31 23:58:09 UTC