DOC AIRBUS | AMM A320FAdjustment of the Air Inlet Flap
TASK 21-61-51-820-001-A
Adjustment of the Air Inlet Flap
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 21-61-51-861-054-A Subtask 21-61-51-865-057-A
Subtask 21-61-51-820-053-B
Subtask 21-61-51-410-053-A
[Rev.10 from 2021]
2026.04.02 06:48:55 UTC
Adjustment of the Air Inlet Flap
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. Fixtures, Tools, Test and Support Equipment
B. 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 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 |
Disconnected Ram-Air Inlet LeverSubtask 21-61-51-861-054-A Subtask 21-61-51-865-057-A
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 21-61-51-010-053-A | 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 |
C. Get Access
(1) Remove the access panel (Ref. AMM TASK 53-35-13-000-002).
(a) For the left air inlet flap,
(b) For the right air inlet flap,
4. Procedure(1) Remove the access panel (Ref. AMM TASK 53-35-13-000-002).
(a) For the left air inlet flap,
(b) For the right air inlet flap,
Subtask 21-61-51-820-053-B
A. Adjustment of the Air Inlet Flap
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Initial Measurement
(a) Make a pencil mark across the center line of the air-inlet flap hinge and measure the DIM B, (Measured Distance "B").
(c) With the aid of the graph find the Required Distance "A" on the bottom scale of the graph.
(d) Measure the DIM A, (Measured Distance "A"):
1 Remove the blanking plugs from the disconnected electrical connectors.
2 Make sure that all the electrical connections are clean and in the correct condition.
3 Connect the electrical connector (1).
4 Make sure that the work area is clean and clear of tools and other items.
5 Continue with Close-up.
(g) If the difference between the Measured Distance "A" and the Required Distance "A" is not as permitted then you must do the adjustment.
(4) Adjustment
(a) Hold the air inlet flap and remove the nut (5), the washer (6), the bolt (9) and the bush (8).
(b) Lower the air inlet flap and disconnect the lever (7) from the rod eye-end (4).
(c) Loosen the nut (3).
(d) Adjust the rod eye-end (4) until the Measured Distance "A" is in tolerance.
(f) Put rod eye-end (4) in position in the lever (7) and install the bush (8), the bolt (9), the washer (6) and the nut (5).
(g) Do the initial measurement and if necessary the adjustment steps again until the Measured Distance "A" is as permitted.
(h) TORQUE the nut (3) to between 0.66 and 0.54 m.daN (58.41 and 47.79 lbf.in )
.
(i) TORQUE the nut (5) to between 0.77 and 0.63 m.daN (68.14 and 55.75 lbf.in ).
(j) Remove the blanking plugs from the disconnected electrical connectors.
(k) Make sure that all the electrical connections are clean and in the correct condition.
(l) Connect the electrical connector (1).
(m) Make sure that the work area is clean and clear of tools and other items.
Subtask 21-61-51-865-076-A NOTE: Do not turn the jack screw when you adjust the rod eye-end.
For any required correction of the setting, you can only adjust the rod eye-end setting.
(1) Disconnect the electrical connector (1). For any required correction of the setting, you can only adjust the rod eye-end setting.
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Initial Measurement
(a) Make a pencil mark across the center line of the air-inlet flap hinge and measure the DIM B, (Measured Distance "B").
NOTE: The measurement for this distance must be made when the air-inlet flap gap is between 30 mm (1.1811 in.) and 95 mm (3.7402 in.).
Measurements must be made at different positions across the width of the air inlet intake.
The smallest measurement must then be used to determine the requirement for adjustment.
If the actuator is fully extended ( Dimension A: 130 mm (5.1 in.)) and the gap is very small, other means to measure the distance "B" must be applied as illustrated, e.g.sheet metal with different thicknesses.
The permitted gap with fully extended actuator is between 0.3 mm (0.01 in.) and 2 mm (0.08 in.).
(b) Make a mark of this Measured Distance "B" on the vertical scale of the graph. Measurements must be made at different positions across the width of the air inlet intake.
The smallest measurement must then be used to determine the requirement for adjustment.
If the actuator is fully extended ( Dimension A: 130 mm (5.1 in.)) and the gap is very small, other means to measure the distance "B" must be applied as illustrated, e.g.sheet metal with different thicknesses.
The permitted gap with fully extended actuator is between 0.3 mm (0.01 in.) and 2 mm (0.08 in.).
(c) With the aid of the graph find the Required Distance "A" on the bottom scale of the graph.
(d) Measure the DIM A, (Measured Distance "A"):
- between the surface of the flap actuator (10) and the center-line of the rod-eye end (4).
NOTE: The permitted difference between the Measured Distance "A" and the Required Distance "A" is -1.0 mm (-0.0394 in.) and +1.0 mm (0.0394 in.),
(f) If the difference between the Measured Distance "A" and the Required Distance "A" is as permitted then adjustment is not necessary. 1 Remove the blanking plugs from the disconnected electrical connectors.
2 Make sure that all the electrical connections are clean and in the correct condition.
3 Connect the electrical connector (1).
4 Make sure that the work area is clean and clear of tools and other items.
5 Continue with Close-up.
(g) If the difference between the Measured Distance "A" and the Required Distance "A" is not as permitted then you must do the adjustment.
(4) Adjustment
(a) Hold the air inlet flap and remove the nut (5), the washer (6), the bolt (9) and the bush (8).
(b) Lower the air inlet flap and disconnect the lever (7) from the rod eye-end (4).
(c) Loosen the nut (3).
(d) Adjust the rod eye-end (4) until the Measured Distance "A" is in tolerance.
NOTE: 1 full turn of the rod eye-end is apprx. 1 mm (0.0394 in.).
Do not turn the jack screw (11) when you do the adjustment.
For any correction to the air inlet flap setting you must only adjust the rod eye-end (4).
After adjustment:
(e) Hold the rod eye-end (4) and the jack screw (11) and tighten the nut (3). Do not turn the jack screw (11) when you do the adjustment.
For any correction to the air inlet flap setting you must only adjust the rod eye-end (4).
After adjustment:
- the DIM C must not be more than 36 mm (1.4173 in.).
- the safety nut (3) must still do its function.
(f) Put rod eye-end (4) in position in the lever (7) and install the bush (8), the bolt (9), the washer (6) and the nut (5).
(g) Do the initial measurement and if necessary the adjustment steps again until the Measured Distance "A" is as permitted.
(h) TORQUE the nut (3) to between 0.66 and 0.54 m.daN (58.41 and 47.79 lbf.in )
. (i) TORQUE the nut (5) to between 0.77 and 0.63 m.daN (68.14 and 55.75 lbf.in )
. (j) Remove the blanking plugs from the disconnected electrical connectors.
(k) Make sure that all the electrical connections are clean and in the correct condition.
(l) Connect the electrical connector (1).
(m) 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 21-61-51-710-052-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 21-61-51-410-053-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access panel/s (Ref. AMM TASK 53-35-13-400-002).
(a) For the left air inlet flap,
(b) For the right air inlet flap,
Subtask 21-61-51-862-053-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access panel/s (Ref. AMM TASK 53-35-13-400-002).
(a) For the left air inlet flap,
(b) For the right air inlet flap,