DOC AIRBUS | AMM A320FCheck of the Flap Drive System
TASK 27-54-00-220-007-A
Check of the Flap Drive System
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 27-54-00-860-080-A
Subtask 27-54-00-220-064-A
Subtask 27-54-00-860-081-A
[Rev.10 from 2021]
2026.03.31 23:53:09 UTC
Check of the Flap Drive System
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 | 1 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | 1 | SAFETY BARRIER(S) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | 1 | WARNING NOTICE(S) |
| 460005835 | 1 | SLEEVE - GROUND LOCK |
| 98D27508625000 | 1 | CHECK-PIN TRACK 1-4 |
| 98D27803000000 | 1 | LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 573BB, 575CB, 575GB, 673BB, 675CB, 675GB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-50-00-480-801-A | Installation/Removal of the Check Pins at Tracks 1-4 |
| TASK 27-50-00-866-008-A | Extension of the Flaps on the Ground |
| TASK 27-50-00-866-008-A-01 | Extension of the Flaps/Slats on the Ground |
| TASK 27-50-00-866-009-A | Retraction of the Flaps on the Ground |
| TASK 27-50-00-866-009-A-01 | Retraction of the Flaps/Slats on the Ground |
| TASK 27-50-00-869-006-A | Reset of the Wing Tip Brake (WTB) of the Flap System on the Ground |
| TASK 27-54-00-710-001-A | Operational Test of the Flap System |
| TASK 32-00-00-481-002-A | Installation of the Safety Devices on the Landing Gear Doors |
| TASK 32-12-00-010-001-A | Open the Main Gear Doors for Access |
| TASK 32-12-00-410-001-A | Close the Main Gear Doors after Access |
| TASK 57-51-37-000-002-A | Removal of the Access Panels 571AB(671AB), 573AB(673AB), 573BB(673BB), 573CB(673CB), 573EB(673EB) |
| TASK 57-51-37-000-004-A | Removal of the Access Panels 575AB(675AB), 575BB(675BB), 575CB(675CB), 575DB(675DB), 575EB(675EB), 575FB(675FB), 575GB(675GB), 575HB(675HB) |
| TASK 57-51-37-400-002-A | Installation of the Access Panels 571AB(671AB), 573AB(673AB), 573BB(673BB), 573CB(673CB), 573EB(673EB) |
| TASK 57-51-37-400-004-A | Installation of the Access Panels 575AB(675AB), 575BB(675BB), 575CB(675CB), 575DB(675DB), 575EB(675EB), 575FB(675FB), 575GB(675GB), 575HB(675HB) |
| TASK 27-54-00-820-001-A | Adjustment of the Flap Drive System (for corrective action) |
Check Pin - Access PanelsSubtask 27-54-00-860-080-A
A. Aircraft Maintenance Configuration
(1) Put the SAFETY BARRIER(S) in position.
(2) Put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear doors.
(3) Extension of the flaps
(b) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever on panel 114VU.
Subtask 27-54-00-865-084-A (1) Put the SAFETY BARRIER(S) in position.
(2) Put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear doors.
(3) Extension of the flaps
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) Extend the flaps fully (Ref. AMM TASK 27-50-00-866-008). (b) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever on panel 114VU.
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 27-54-00-010-068-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
C. Get Access
(1) Open the main gear doors (Ref. AMM TASK 32-12-00-010-001).
(2) Install the 460005835 SLEEVE - GROUND LOCK on the applicable main gear door-actuator (Ref. AMM TASK 32-00-00-481-002).
(3) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position.
(4) Remove the applicable access panels (Ref. AMM TASK 57-51-37-000-002) and (Ref. AMM TASK 57-51-37-000-004):
For the LH wing, remove the panels:
For the RH wing, remove the panels:
(5) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever on panel 114VU.
Subtask 27-54-00-865-085-A (1) Open the main gear doors (Ref. AMM TASK 32-12-00-010-001).
(2) Install the 460005835 SLEEVE - GROUND LOCK on the applicable main gear door-actuator (Ref. AMM TASK 32-00-00-481-002).
(3) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position.
(4) Remove the applicable access panels (Ref. AMM TASK 57-51-37-000-002) and (Ref. AMM TASK 57-51-37-000-004):
For the LH wing, remove the panels:
For the RH wing, remove the panels:
(5) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever on panel 114VU.
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 27-54-00-866-061-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
E. Retraction of the flaps
(1) Retract the flaps fully (Ref. AMM TASK 27-50-00-866-009). Do not do this manually.
(2) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever on panel 114VU.
(3) Put a WARNING NOTICE(S) on panel 114VU to tell persons not to operate the flap/slat controls.
Subtask 27-54-00-865-086-A (1) Retract the flaps fully (Ref. AMM TASK 27-50-00-866-009). Do not do this manually.
(2) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever on panel 114VU.
(3) Put a WARNING NOTICE(S) on panel 114VU to tell persons not to operate the flap/slat controls.
F. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
Subtask 27-54-00-220-064-A
A. Installation of the Check Pins
(1) General:
For A318, A319 and A320: Use check pin 98D27508625040 of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 1 position. And use check pin 98D27508625042 of the tool set in the tracks 2, 3 and 4 positions.
For A321: Use check pin 98D27508625042 of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 for all track positions (tracks 1 to 4).
(Ref. AMM TASK 27-50-00-480-801).
(2) Clean the check pin holes at the tracks 1, 2, 3 and 4.
(3) Install the applicable check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 1 position.
(a) If you cannot insert the check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 1 position easily, do the adjustment of the flap drive system (Ref. AMM TASK 27-54-00-820-001).
(4) Install the applicable check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 2 position.
(a) If you cannot insert the check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 2 position easily, do the adjustment of the flap drive system (Ref. AMM TASK 27-54-00-820-001).
(5) Install the applicable check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 3 position.
(a) If you cannot insert the check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 3 position easily , do the adjustment of the flap drive system (Ref. AMM TASK 27-54-00-820-001).
(6) Install the applicable check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 4 position.
(a) If you cannot insert the check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 4 position easily, do the adjustment of the flap drive system (Ref. AMM TASK 27-54-00-820-001).
Subtask 27-54-00-860-082-A (1) General:
For A318, A319 and A320: Use check pin 98D27508625040 of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 1 position. And use check pin 98D27508625042 of the tool set in the tracks 2, 3 and 4 positions.
For A321: Use check pin 98D27508625042 of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 for all track positions (tracks 1 to 4).
(Ref. AMM TASK 27-50-00-480-801).
(2) Clean the check pin holes at the tracks 1, 2, 3 and 4.
(3) Install the applicable check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 1 position.
(a) If you cannot insert the check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 1 position easily, do the adjustment of the flap drive system (Ref. AMM TASK 27-54-00-820-001).
(4) Install the applicable check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 2 position.
(a) If you cannot insert the check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 2 position easily, do the adjustment of the flap drive system (Ref. AMM TASK 27-54-00-820-001).
(5) Install the applicable check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 3 position.
(a) If you cannot insert the check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 3 position easily , do the adjustment of the flap drive system (Ref. AMM TASK 27-54-00-820-001).
(6) Install the applicable check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 4 position.
(a) If you cannot insert the check pin of the tool set 98D27508625000 CHECK-PIN TRACK 1-4 in the track 4 position easily, do the adjustment of the flap drive system (Ref. AMM TASK 27-54-00-820-001).
B. Preparation for Test
(1) Remove the check pins from the tracks 1, 2, 3 and 4.
(2) Reset the Wing Tip Brake (WTB) of the flap system if necessary (Ref. AMM TASK 27-50-00-869-006).
Subtask 27-54-00-710-053-A 5. Close-up(1) Remove the check pins from the tracks 1, 2, 3 and 4.
(2) Reset the Wing Tip Brake (WTB) of the flap system if necessary (Ref. AMM TASK 27-50-00-869-006).
Subtask 27-54-00-860-081-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panels:
(a) For the LH wing, install these access panels (Ref. AMM TASK 57-51-37-400-002) and (Ref. AMM TASK 57-51-37-400-004):
(b) For the RH wing, install these access panels (Ref. AMM TASK 57-51-37-400-002) and (Ref. AMM TASK 57-51-37-400-004):
(3) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever.
(4) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panels:
(a) For the LH wing, install these access panels (Ref. AMM TASK 57-51-37-400-002) and (Ref. AMM TASK 57-51-37-400-004):
(b) For the RH wing, install these access panels (Ref. AMM TASK 57-51-37-400-002) and (Ref. AMM TASK 57-51-37-400-004):
(3) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever.
(4) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.