DOC AIRBUS | AMM A320FInstallation of the Air Inlet Flap-Assembly
TASK 21-61-51-400-004-A
Installation of the Air Inlet Flap-Assembly
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
B. Referenced Information
3. Job Set-up
Subtask 21-61-51-860-057-A
Subtask 21-61-51-560-051-B
Subtask 21-61-51-410-057-A
[Rev.10 from 2021]
2026.04.02 06:48:55 UTC
Installation of the Air Inlet Flap-Assembly
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.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 191BB, 191KB, 192FB, 192KB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 21-52-42-000-001-A | Removal of the Water Injector |
| TASK 21-52-42-400-001-A | Installation of the Water Injector |
| TASK 21-61-00-710-001-A | Operational Test of the Pack Temperature-Control System |
| TASK 21-61-51-000-002-A | Removal of the Air Inlet |
| TASK 21-61-51-400-002-A | Installation of the Air Inlet |
| 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 - Component LocationSubtask 21-61-51-860-057-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 panels are removed (Ref. AMM TASK 53-35-13-000-002).
1 For the Left air inlet,
(f) The water injector is removed (Ref. AMM TASK 21-52-42-000-001).
Subtask 21-61-51-865-065-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 panels are removed (Ref. AMM TASK 53-35-13-000-002).
1 For the Left air inlet,
- 191BB and 191KB.
- 192FB and 192KB.
(f) The water injector is removed (Ref. AMM TASK 21-52-42-000-001).
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 21-61-51-560-051-B
A. Preparation of the Replacement Component
(1) Put the hinge assembly (3) in position in the inlet ramp (6).
(2) Install the hinge pin (4) and the retaining rings (2).
(3) Put the inlet ramp (6) in position in the diffuser ramp (1).
(4) Install the hinge pin (5) and the retaining rings (2).
(5) Put the connecting arms (28) in position in the brackets (9) and install the bushes (8), the bolts (7), the washers (10) and the nuts (11).
(6) Put the guides (27) in position in the air-inlet flap assembly.
Subtask 21-61-51-420-053-B (1) Put the hinge assembly (3) in position in the inlet ramp (6).
(2) Install the hinge pin (4) and the retaining rings (2).
(3) Put the inlet ramp (6) in position in the diffuser ramp (1).
(4) Install the hinge pin (5) and the retaining rings (2).
(5) Put the connecting arms (28) in position in the brackets (9) and install the bushes (8), the bolts (7), the washers (10) and the nuts (11).
(6) Put the guides (27) in position in the air-inlet flap assembly.
B. Installation of the Air Inlet Flap
(1) Make sure that the side guides (27) are in position.
(2) Put the air inlet flap-assembly (20) in position in the air inlet.
(3) Install the screws (21).
(4) Lift and put the connecting arms (28) in position in the housings (24).
(a) Install the bolts (22), the bushes (23), the washers (25) and the nuts (26).
(5) Make sure that the air-inlet flap assembly (20) can move freely through the full range of movement.
(6) Move the air inlet flap-assembly (20) to the open position and:
(a) Put the support rod (10) in position in the bracket (9) and install the bush (8), the bolt (7), the washer (11) and the nut (12).
(b) Put the actuator (1) in position in the lever (4) and install the bush (5), the bolt (6), the washer (3) and the nut (2).
Subtask 21-61-51-410-056-A (1) Make sure that the side guides (27) are in position.
(2) Put the air inlet flap-assembly (20) in position in the air inlet.
(3) Install the screws (21).
(4) Lift and put the connecting arms (28) in position in the housings (24).
(a) Install the bolts (22), the bushes (23), the washers (25) and the nuts (26).
(5) Make sure that the air-inlet flap assembly (20) can move freely through the full range of movement.
(6) Move the air inlet flap-assembly (20) to the open position and:
(a) Put the support rod (10) in position in the bracket (9) and install the bush (8), the bolt (7), the washer (11) and the nut (12).
(b) Put the actuator (1) in position in the lever (4) and install the bush (5), the bolt (6), the washer (3) and the nut (2).
C. Installation of the items removed for access
(1) Install the water injector (Ref. AMM TASK 21-52-42-400-001).
(2) Install the air inlet (Ref. AMM TASK 21-61-51-400-002).
Subtask 21-61-51-820-054-A Subtask 21-61-51-865-078-A (1) Install the water injector (Ref. AMM TASK 21-52-42-400-001).
(2) Install the air inlet (Ref. AMM TASK 21-61-51-400-002).
E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 21-61-51-710-054-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 21-61-51-410-057-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 (Ref. AMM TASK 53-35-13-400-002).
(a) For the Left air inlet,
(b) For the Right air inlet,
Subtask 21-61-51-862-055-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panels (Ref. AMM TASK 53-35-13-400-002).
(a) For the Left air inlet,
(b) For the Right air inlet,