DOC AIRBUS | AMM A320FInstallation of the Air-Inlet Flap Actuator
TASK 21-61-51-400-001-A
Installation of the Air-Inlet Flap Actuator
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 21-61-51-860-052-A
Subtask 21-61-51-420-050-B
Subtask 21-61-51-410-050-A
[Rev.10 from 2021]
2026.04.01 04:53:05 UTC
Installation of the Air-Inlet Flap Actuator
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 air-inlet flap actuator 8HH and 28HH.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [28HH] (P2 RAM AIR IN ACTUATOR) | |
| 192FB, 192KB | |
| FOR [8HH] (P1 RAM AIR IN ACTUATOR) | |
| 191BB, 191KB | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 5 | PIN-COTTER | AIPC 21-61-03-10-040 |
| 5 | PIN-COTTER | AIPC 21-61-83-10-090 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 20-28-00-912-803-A | Bonding Surface Preparation |
| 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 21-61-51-820-001-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-Actuator 8HH (28HH)Subtask 21-61-51-860-052-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/s is/are removed (Ref. AMM TASK 53-35-13-000-002).
1 FOR [8HH] (P1 RAM AIR IN ACTUATOR)
2 FOR [28HH] (P2 RAM AIR IN ACTUATOR)
Subtask 21-61-51-865-073-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/s is/are removed (Ref. AMM TASK 53-35-13-000-002).
1 FOR [8HH] (P1 RAM AIR IN ACTUATOR)
2 FOR [28HH] (P2 RAM AIR IN ACTUATOR)
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 | |||
| 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 21-61-51-420-050-B
A. Installation of the Air-Inlet Flap Actuator
(1) Do not turn the jack screw when you install the air-inlet flap actuator.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Clean the component interfaces and the adjacent area.
(4) Prepare the surface of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-803).
(5) Put the air-inlet flap actuator (9) in position on the bracket (15).
(6) Install the bolt (16), the washer (4) and the nut (6).
(7) TORQUE the nut (6) to between 0.385 and 0.315 m.daN (34.07 and 27.88 lbf.in )
.
(9) Put the air-inlet-flap actuator-rod eye-end in position in the lever (12).
(10) Install the sleeve (13), bolt (14), washer (11) and nut (10).
(11) TORQUE the nut (10) to between 0.77 and 0.63 m.daN (68.14 and 55.75 lbf.in ).
(12) Put the bonding straps (3) in position and install the screw (2), the washer (7) and the nut (8).
(13) Do the electrical resistance measurement and the final protection of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-802).
(14) Remove the CAP-BLANKING from each electrical connector and receptacle.
Subtask 21-61-51-820-051-B (1) Do not turn the jack screw when you install the air-inlet flap actuator.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Clean the component interfaces and the adjacent area.
(4) Prepare the surface of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-803).
(5) Put the air-inlet flap actuator (9) in position on the bracket (15).
(6) Install the bolt (16), the washer (4) and the nut (6).
(7) TORQUE the nut (6) to between 0.385 and 0.315 m.daN (34.07 and 27.88 lbf.in )
.WARNING:
USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.
(8) Install the new AIPC 21-61-03-10-040 PIN-COTTER (5) or AIPC 21-61-83-10-090 PIN-COTTER (5) and safety it. (9) Put the air-inlet-flap actuator-rod eye-end in position in the lever (12).
(10) Install the sleeve (13), bolt (14), washer (11) and nut (10).
(11) TORQUE the nut (10) to between 0.77 and 0.63 m.daN (68.14 and 55.75 lbf.in )
.(12) Put the bonding straps (3) in position and install the screw (2), the washer (7) and the nut (8).
(13) Do the electrical resistance measurement and the final protection of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-802).
(14) Remove the CAP-BLANKING from each electrical connector and receptacle.
CAUTION:
MAKE SURE THAT THE BONDING STRAP(S) IS(ARE) CONNECTED BEFORE YOU CONNECT THE ELECTRICAL CONNECTOR(S).
CAUTION:
MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
(15) Connect the electrical connector (1). B. Adjustment of the Ram-Air Inlet Flap
(1) Adjust the DIM "C" according the measured value of removed Air-Inlet-Flap Actuator (Ref. AMM TASK 21-61-51-000-001).
Ensure that the flap is not in touch with the ram channel over the whole length of the gap when the actuator is fully extended.
(2) If DIM "C" of removed part is not available, do the adjustment of the ram-air inlet flap (Ref. AMM TASK 21-61-51-820-001).
Subtask 21-61-51-865-075-A (1) Adjust the DIM "C" according the measured value of removed Air-Inlet-Flap Actuator (Ref. AMM TASK 21-61-51-000-001).
Ensure that the flap is not in touch with the ram channel over the whole length of the gap when the actuator is fully extended.
(2) If DIM "C" of removed part is not available, do the adjustment of the ram-air inlet flap (Ref. AMM TASK 21-61-51-820-001).
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 21-61-51-710-050-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 21-61-51-410-050-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) Close the access panel/s (Ref. AMM TASK 53-35-13-400-002).
(a) FOR [8HH] (P1 RAM AIR IN ACTUATOR)
(b) FOR [28HH] (P2 RAM AIR IN ACTUATOR)
Subtask 21-61-51-862-051-A (1) Remove the WARNING NOTICE(S).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Close the access panel/s (Ref. AMM TASK 53-35-13-400-002).
(a) FOR [8HH] (P1 RAM AIR IN ACTUATOR)
(b) FOR [28HH] (P2 RAM AIR IN ACTUATOR)