Replacement of the Hose
TASK 21-52-32-960-801-A
Replacement of the Hose
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 21-52-32-861-052-A Subtask 21-52-32-865-054-A
Subtask 21-52-32-960-050-A
Subtask 21-52-32-410-052-A
[Rev.10 from 2021]
2026.04.02 06:11:30 UTC
Replacement of the Hose
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 condensers 10HM2 and 11HM2.
1. Reason for the JobNOTE: The procedure is only applicable when the hose is installed.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 191 | AIR CONDITIONING COMPT AND FAIRINGS |
| 192 | AIR CONDITIONING COMPT AND FAIRINGS |
| FOR [10HM2] (CONDENSER) | |
| 191BB, 191KB | |
| FOR [11HM2] (CONDENSER) | |
| 192FB, 192KB | |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 2 | HOSE | AIPC 21-52-32-02-010 |
| 4 | CLAMP | AIPC 21-52-32-02-020 |
| 5 | SCREW | AIPC 21-52-32-02-040 |
| 6 | WASHER | AIPC 21-52-32-02-050 |
| 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 21-63-00-710-004-A | Operational Test of the Cockpit and Cabin Temperature Control with CFDS/MCDU |
| 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 |
Subtask 21-52-32-861-052-A Subtask 21-52-32-865-054-A
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 21-52-32-010-051-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 10HM2 (CONDENSER) | |||
| 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: 11HM2 (CONDENSER) | |||
| 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(s) (Ref. AMM TASK 53-35-13-000-002):
(a) FOR [10HM2] (CONDENSER)
(b) FOR [11HM2] (CONDENSER)
4. Procedure(1) Remove the access panel(s) (Ref. AMM TASK 53-35-13-000-002):
(a) FOR [10HM2] (CONDENSER)
(b) FOR [11HM2] (CONDENSER)
Subtask 21-52-32-960-050-A
A. Replacement of the Hose
(1) Remove the screw (5) and the washer (6).
(2) Loosen the clamps (4).
(3) Remove the hose (2) from the condenser (1).
(4) Remove the clamps (8) and (4) from the hose (2).
(5) If damaged, remove and discard the AIPC 21-52-32-02-020 CLAMP (4), the AIPC 21-52-32-02-040 SCREW (5) and the AIPC 21-52-32-02-050 WASHER (6).
(6) Put the new AIPC 21-52-32-02-010 HOSE (2) in position on the inlet tubes (3) of the condenser (1).
(7) Install the clamps (4) on the new hose (2).
(8) TORQUE the clamps (4):
(10) Install the washer (6) and the screw (5) on the bracket (7).
(11) TORQUE the screw (5) to between 0.67 and 0.55 m.daN (59.29 and 48.67 lbf.in )
.
Subtask 21-52-32-865-055-A (1) Remove the screw (5) and the washer (6).
(2) Loosen the clamps (4).
(3) Remove the hose (2) from the condenser (1).
(4) Remove the clamps (8) and (4) from the hose (2).
(5) If damaged, remove and discard the AIPC 21-52-32-02-020 CLAMP (4), the AIPC 21-52-32-02-040 SCREW (5) and the AIPC 21-52-32-02-050 WASHER (6).
(6) Put the new AIPC 21-52-32-02-010 HOSE (2) in position on the inlet tubes (3) of the condenser (1).
(7) Install the clamps (4) on the new hose (2).
(8) TORQUE the clamps (4):
- For clamps PN: 841210-14 to between 0.1 and 0.05 m.daN (8.85 and 4.42 lbf.in )

- For clamps PN: S4629H08-016 to between 0.28 and 0.26 m.daN (24.78 and 23.01 lbf.in )

- For clamps PN: FLEXF010019 to between 0.28 and 0.26 m.daN (24.78 and 23.01 lbf.in )
.
(10) Install the washer (6) and the screw (5) on the bracket (7).
(11) TORQUE the screw (5) to between 0.67 and 0.55 m.daN (59.29 and 48.67 lbf.in )
. B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 21-52-32-710-051-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 10HM2 (CONDENSER) | |||
| 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: 11HM2 (CONDENSER) | |||
| 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. Test
(1) Do the pre-conditioning through the HP ground connector (Ref. AMM TASK 12-33-21-618-001) or with the APU (Ref. AMM TASK 12-33-21-618-001).
(2) Do a leak check of the condenser connections.
(a) Make sure that there are no leaks.
(4) After approximately 15 minutes, stop the pre-conditioning (Ref. AMM TASK 12-33-21-618-001) or (Ref. AMM TASK 12-33-21-618-001).
(5) Do the operational test of the cockpit and cabin temperature control (Ref. AMM TASK 21-63-00-710-004).
5. Close-up(1) Do the pre-conditioning through the HP ground connector (Ref. AMM TASK 12-33-21-618-001) or with the APU (Ref. AMM TASK 12-33-21-618-001).
(2) Do a leak check of the condenser connections.
NOTE: Minimum leakage is permitted. After the pack operates for some minutes, the leakage of air will decrease because the seals have their correct operating temperature.
(3) Do a leak check of the sense line connections: (a) Make sure that there are no leaks.
(4) After approximately 15 minutes, stop the pre-conditioning (Ref. AMM TASK 12-33-21-618-001) or (Ref. AMM TASK 12-33-21-618-001).
(5) Do the operational test of the cockpit and cabin temperature control (Ref. AMM TASK 21-63-00-710-004).
Subtask 21-52-32-410-052-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panel(s) (Ref. AMM TASK 53-35-13-400-002):
(a) FOR [10HM2] (CONDENSER)
(b) FOR [11HM2] (CONDENSER)
(3) Remove the WARNING NOTICE(S).
Subtask 21-52-32-862-051-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panel(s) (Ref. AMM TASK 53-35-13-400-002):
(a) FOR [10HM2] (CONDENSER)
(b) FOR [11HM2] (CONDENSER)
(3) Remove the WARNING NOTICE(S).
Hose