DOC AIRBUS | AMM A320FInstallation of the Ram-Air Outlet
TASK 21-61-52-400-003-A
Installation of the Ram-Air Outlet
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 21-61-52-860-054-A
Subtask 21-61-52-420-053-B
Subtask 21-61-52-410-056-A
[Rev.10 from 2021]
2026.04.02 06:48:34 UTC
Installation of the Ram-Air Outlet
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.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
NOTE: The procedure is the same for the left ram-air outlet and the right ram-air outlet.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | Torque wrench: range to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06CMD9) | Silicone Adhesive Sealant-General Purpose One part legacy |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 191KB, 192KB, 195AB, 196AB |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 3 | SEAL | AIPC 21-52-03-46-080 |
| 3 | SEAL | AIPC 21-52-03-58-080 |
| 3 | SEAL | AIPC 21-52-83-24-100 |
| 3 | SEAL | AIPC 21-52-83-32-090 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-33-21-618-001-A-01 | Pre-conditioning through the HP Ground Connection |
| TASK 12-33-21-618-001-A-02 | Pre-conditioning with the APU |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| 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 |
Ram Air OutletSubtask 21-61-52-860-054-A
A. Aircraft Maintenance Configuration
(1) Make sure that the access panels are removed (Ref. AMM TASK 53-35-13-000-002).
(a) For the left ram-air outlet,
(b) For the right ram-air outlet,
(2) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(3) On the panel 30VU:
(a) Make sure that the APU BLEED and the ENG BLEED/1(2) pushbutton switches are released.
(b) Make sure that the warning notice to tell persons not to operate these pushbutton switches is in position.
(4) On the HP ground connector make sure that the warning notice to tell persons not to supply ground air is in position.
Subtask 21-61-52-865-061-A (1) Make sure that the access panels are removed (Ref. AMM TASK 53-35-13-000-002).
(a) For the left ram-air outlet,
(b) For the right ram-air outlet,
(2) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(3) On the panel 30VU:
(a) Make sure that the APU BLEED and the ENG BLEED/1(2) pushbutton switches are released.
(b) Make sure that the warning notice to tell persons not to operate these pushbutton switches is in position.
(4) On the HP ground connector make sure that the warning notice to tell persons not to supply ground air is in position.
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: 9HH | |||
| 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: 29HH | |||
| 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 21-61-52-420-053-B
A. Installation of the Ram-Air Outlet
(2) Examine the seal:
(a) For the left ram-air outlet,
1 Make sure that the seal (3) is in a good condition.
2 If necessary replace the AIPC 21-52-03-46-080 SEAL (3) or AIPC 21-52-83-24-100 SEAL (3).
a Remove the damaged seal (3).
1 Make sure that the seal (3) is in a good condition.
2 If necessary replace the AIPC 21-52-03-58-080 SEAL (3) or AIPC 21-52-83-32-090 SEAL (3).
a Remove the damaged seal (3).
b Clean the seal contact area of the ram-air outlet (5) with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
c Attach the new seal (3) to the ram-air outlet (5) with Silicone Adhesive Sealant-General Purpose One part legacy (Material No.06CMD9) .
(3) Put the ram-air outlet (5) in position and:
(a) For the left ram-air outlet,
1 Install the washers (4) and the bolts (12), (13), (15), (16) and (18) as identified in the removal procedure.
1 Install the washers (4) and the bolts (12), (14), (15), (17) and (18) as identified in the removal procedure.
(5) Put the clamp (2) and the sleeve (1) in position on the ram-air outlet (5).
(6) Tighten the clamp (2).
(7) Make sure that the work area is clean and clear of tools and other items.
(8) Install the access panel/s (Ref. AMM TASK 53-35-13-400-002).
(a) For the left ram-air outlet,
1 191KB.
(b) For the right ram-air outlet,
1 192KB.
(a) For the left ram-air outlet:
1 the bolts (12), (16) and (18) to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in ),
2 the bolts (13) and (15) to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in ) (Ref. AMM TASK 20-28-00-912-802).
(b) For the right ram-air outlet:
1 the bolts (12), (17) and (18) to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in ),
2 the bolts (14) and (15) to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in ) (Ref. AMM TASK 20-28-00-912-802).
(10) Remove the access panel/s (Ref. AMM TASK 53-35-13-000-002).
(a) For the left ram-air outlet,
1 191KB.
(b) For the right ram-air outlet,
1 192KB.
(11) Make sure that the work area is clean and clear of tools and other items.
Subtask 21-61-52-865-077-A WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.(2) Examine the seal:
(a) For the left ram-air outlet,
1 Make sure that the seal (3) is in a good condition.
2 If necessary replace the AIPC 21-52-03-46-080 SEAL (3) or AIPC 21-52-83-24-100 SEAL (3).
a Remove the damaged seal (3).
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
3 To Clean the Seal Contact Area and to Attach the Seal - clean the seal contact area of the ram-air outlet (5) with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
- attach the new seal (3) to the ram-air outlet (5) with Silicone Adhesive Sealant-General Purpose One part legacy (Material No.06CMD9) .
1 Make sure that the seal (3) is in a good condition.
2 If necessary replace the AIPC 21-52-03-58-080 SEAL (3) or AIPC 21-52-83-32-090 SEAL (3).
a Remove the damaged seal (3).
b Clean the seal contact area of the ram-air outlet (5) with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
c Attach the new seal (3) to the ram-air outlet (5) with Silicone Adhesive Sealant-General Purpose One part legacy (Material No.06CMD9) .
(3) Put the ram-air outlet (5) in position and:
(a) For the left ram-air outlet,
1 Install the washers (4) and the bolts (12), (13), (15), (16) and (18) as identified in the removal procedure.
NOTE: Do not tighten the bolts at this time.
(b) For the right ram-air outlet, 1 Install the washers (4) and the bolts (12), (14), (15), (17) and (18) as identified in the removal procedure.
NOTE: Do not tighten the bolts at this time.
(4) Install the washers (7) and the screws (6). (5) Put the clamp (2) and the sleeve (1) in position on the ram-air outlet (5).
(6) Tighten the clamp (2).
(7) Make sure that the work area is clean and clear of tools and other items.
(8) Install the access panel/s (Ref. AMM TASK 53-35-13-400-002).
(a) For the left ram-air outlet,
1 191KB.
(b) For the right ram-air outlet,
1 192KB.
NOTE: This will make sure that the ram-air outlet is in the correct position.
(9) Torque the bolts: (a) For the left ram-air outlet:
1 the bolts (12), (16) and (18) to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in )
, 2 the bolts (13) and (15) to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in )
(Ref. AMM TASK 20-28-00-912-802). (b) For the right ram-air outlet:
1 the bolts (12), (17) and (18) to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in )
, 2 the bolts (14) and (15) to between 0.396 and 0.324 m.daN (35.04 and 28.67 lbf.in )
(Ref. AMM TASK 20-28-00-912-802). (10) Remove the access panel/s (Ref. AMM TASK 53-35-13-000-002).
(a) For the left ram-air outlet,
1 191KB.
(b) For the right ram-air outlet,
1 192KB.
(11) 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 21-61-52-860-055-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 9HH | |||
| 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: 29HH | |||
| 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. Pre-condition the Air Conditioning System
(a) The HP ground connector (Ref. AMM TASK 12-33-21-618-001)
(b) With the APU (Ref. AMM TASK 12-33-21-618-001).
Subtask 21-61-52-710-053-A WARNING:
MAKE SURE THAT THE FWD AVIONICS ACCESS DOOR 811 IS OPEN WITH A WARNING PLACARD ATTACHED TO IT.
THE WARNING NOTICE MUST TELL PERSONS NOT TO CLOSE THE DOOR. THIS PREVENTS ACCIDENTAL PRESSURIZATION OF THE AIRCRAFT.
(1) Do the pre-conditioning through: (a) The HP ground connector (Ref. AMM TASK 12-33-21-618-001)
NOTE: When you do the pre-conditioning through the HP ground connector you must ignore the warning notice which tells persons not to supply the ground air.
or, (b) With the APU (Ref. AMM TASK 12-33-21-618-001).
NOTE: When you do the pre-conditioning with the APU you must ignore the warning notice on the panel 30VU which tells persons not to operate the APU BLEED pushbutton switch.
D. Test
(1) Make sure that there are no leaks from the sleeve (1).
(2) Stop the pre-conditioning (Ref. AMM TASK 12-33-21-618-001), or
(Ref. AMM TASK 12-33-21-618-001).
(3) Do the operational test of the pack temperature-control system (Ref. AMM TASK 21-61-00-710-001).
5. Close-up(1) Make sure that there are no leaks from the sleeve (1).
(2) Stop the pre-conditioning (Ref. AMM TASK 12-33-21-618-001), or
(Ref. AMM TASK 12-33-21-618-001).
(3) Do the operational test of the pack temperature-control system (Ref. AMM TASK 21-61-00-710-001).
Subtask 21-61-52-410-056-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 ram-air outlet,
1 191KB and 195AB.
(b) For the right ram-air outlet,
1 192KB and 196AB.
Subtask 21-61-52-862-052-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 ram-air outlet,
1 191KB and 195AB.
(b) For the right ram-air outlet,
1 192KB and 196AB.