DOC AIRBUS | AMM A320FInstallation of the Air-Inlet Flap Mechanism
TASK 21-61-51-400-003-A
Installation of the Air-Inlet Flap Mechanism
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
B. Referenced Information
3. Job Set-up
Subtask 21-61-51-860-050-A
Subtask 21-61-51-420-052-B
Subtask 21-61-51-410-054-A
[Rev.10 from 2021]
2026.04.02 06:49:00 UTC
Installation of the Air-Inlet Flap Mechanism
WARNING:
MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE.
HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
NOTE: The procedure is the same for the left and the right air-inlet flap mechanism .
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 191BB, 192FB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 21-61-00-710-001-A | Operational Test of the Pack Temperature-Control System |
| TASK 21-61-51-000-001-A | Removal of the Air-Inlet Flap Actuator |
| TASK 21-61-51-400-001-A | Installation of the Air-Inlet Flap Actuator |
| TASK 21-61-51-820-001-A | Adjustment of the Air Inlet Flap |
| 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 53-35-13-000-002-A | Removal of the Quick-Release Access Panels from the Belly Fairing Structure |
| TASK 53-35-13-400-002-A | Installation of the Quick-Release Access Panels on the Belly Fairing Structure |
Air-Inlet Flap Mechanism - Component LocationSubtask 21-61-51-860-050-A
A. Aircraft Maintenance Configuration
(1) Make sure that:
(a) The aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(b) On the panel 30VU:
1 The APU BLEED and the ENG BLEED/1(2) pushbutton switches are released.
2 The warning notice to tell persons not to operate these pushbutton switches is in position.
(c) On the HP ground connector the warning notice to tell persons not to supply the ground air is in position.
(d) The access panel is removed (Ref. AMM TASK 53-35-13-000-002).
1 For the Left air-inlet flap mechanism,
2 For the Right air-inlet flap mechanism,
(e) The air-inlet flap actuator is removed (Ref. AMM TASK 21-61-51-000-001).
1 For the left air-inlet flap mechanism,
Subtask 21-61-51-865-060-A (1) Make sure that:
(a) The aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(b) On the panel 30VU:
1 The APU BLEED and the ENG BLEED/1(2) pushbutton switches are released.
2 The warning notice to tell persons not to operate these pushbutton switches is in position.
(c) On the HP ground connector the warning notice to tell persons not to supply the ground air is in position.
(d) The access panel is removed (Ref. AMM TASK 53-35-13-000-002).
1 For the Left air-inlet flap mechanism,
2 For the Right air-inlet flap mechanism,
(e) The air-inlet flap actuator is removed (Ref. AMM TASK 21-61-51-000-001).
1 For the left air-inlet flap mechanism,
- 8HH.
- 28HH.
B. 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 | AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC | 52HH | D08 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/115VAC | 21HH | W22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/28VDC | 23HH | W21 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/115VAC | 1HH | X22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/28VDC | 3HH | X21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/28VDC | 24HH | Y21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/115VAC | 22HH | Y20 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/28VDC | 4HH | Y19 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/115VAC | 2HH | Y18 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/115VAC | 53HH | W22 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/28VDC | 55HH | W21 |
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN A/115VAC | 49HH | X22 |
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN A/28VDC | 51HH | X21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/28VDC | 56HH | Y21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/115VAC | 54HH | Y20 |
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN B/115VAC | 50HH | Y18 |
Subtask 21-61-51-420-052-B
A. Installation of the Air-Inlet Flap Mechanism
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Put the lever (12) in position in the bracket (15).
(3) Install the bolt (1), the bushing (18), the washer (19) the nut (20) and the cotter (21).
(4) Put the tie-rod (10) in position in the lever (12) and install the bushing (8), the bolt (7), the washer (11) and the nut (16).
(5) Move the air inlet to the open position.
(6) Put the tie rod (10) in position in the bracket (17) and install the sleeve (8), the bolt (7), the washer (11) and the nut (16).
(7) Install the air-inlet flap actuator (Ref. AMM TASK 21-61-51-400-001).
(8) Do the adjustment of the air inlet flap (Ref. AMM TASK 21-61-51-820-001).
(9) Make sure that the work area is clean and clear of tools and other items.
Subtask 21-61-51-865-077-A (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Put the lever (12) in position in the bracket (15).
(3) Install the bolt (1), the bushing (18), the washer (19) the nut (20) and the cotter (21).
(4) Put the tie-rod (10) in position in the lever (12) and install the bushing (8), the bolt (7), the washer (11) and the nut (16).
(5) Move the air inlet to the open position.
(6) Put the tie rod (10) in position in the bracket (17) and install the sleeve (8), the bolt (7), the washer (11) and the nut (16).
(7) Install the air-inlet flap actuator (Ref. AMM TASK 21-61-51-400-001).
(8) Do the adjustment of the air inlet flap (Ref. AMM TASK 21-61-51-820-001).
(9) Make sure that the work area is clean and clear of tools and other items.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 21-61-51-710-053-A 5. Close-up| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 8HH (P1 RAM AIR IN ACTUATOR) | |||
| 49VU | AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC | 52HH | D08 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/115VAC | 1HH | X22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/1/28VDC | 3HH | X21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/28VDC | 4HH | Y19 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/1/115VAC | 2HH | Y18 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN A/115VAC | 49HH | X22 |
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN A/28VDC | 51HH | X21 |
| 122VU | AIR COND/TEMP CTL SYS 1/CHAN B/115VAC | 50HH | Y18 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 28HH (P2 RAM AIR IN ACTUATOR) | |||
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/115VAC | 21HH | W22 |
| 122VU | AIR COND/PACK TEMP/CTL SYS1/2/28VDC | 23HH | W21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/28VDC | 24HH | Y21 |
| 122VU | AIR COND/PACK TEMP CTL SYS2/2/115VAC | 22HH | Y20 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/115VAC | 53HH | W22 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN A/28VDC | 55HH | W21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/28VDC | 56HH | Y21 |
| 122VU | AIR COND/TEMP CTL SYS 2/CHAN B/115VAC | 54HH | Y20 |
Subtask 21-61-51-410-054-A
A. Close Access
(1) Remove the WARNING NOTICE(S).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install the access panel (Ref. AMM TASK 53-35-13-400-002).
(a) For the Left air-inlet flap mechanism,
(b) For the Right air-inlet flap mechanism,
Subtask 21-61-51-862-050-A (1) Remove the WARNING NOTICE(S).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Install the access panel (Ref. AMM TASK 53-35-13-400-002).
(a) For the Left air-inlet flap mechanism,
(b) For the Right air-inlet flap mechanism,