DOC AIRBUS | AMM A320FInstallation of the Outflow Valve - Electronics Module 10HL-1 (10HL-2)
TASK 21-31-51-400-002-A
Installation of the Outflow Valve - Electronics Module 10HL-1 (10HL-2)
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 21-31-51-860-056-A ** ON A/C NOT FOR ALL
Subtask 21-31-51-420-051-A ** ON A/C NOT FOR ALL
Subtask 21-31-51-410-063-A
[Rev.10 from 2021]
2026.04.02 06:11:16 UTC
Installation of the Outflow Valve - Electronics Module 10HL-1 (10HL-2)
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 electronics modules 1 and 2.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 162CW, 826 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 21-31-00-710-002-A | Operational Test of the Pressure Control and Monitoring |
| TASK 21-31-00-710-003-A | Operational Test of Manual Mode Selection and Manual Mode Pressure Control and Functional Test of Manual Mode Cabin Altitude/Outflow Valve Position Indication |
| TASK 21-31-51-000-002-A | Removal of the Outflow Valve - Electronics Module 10HL-1 (10HL-2) |
| 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 25-55-12-000-003-A | Removal of the Sidewall Panels in the Aft Cargo Compartment - FR59/FR65 |
| TASK 25-55-12-400-003-A | Installation of the Sidewall Panels in the Aft Cargo Compartment - FR59/FR65 |
| TASK 52-30-00-860-001-A | Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
Electronics Module 10HL-1 (10HL-2) - Component LocationSubtask 21-31-51-860-056-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Make sure that:
(a) The aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(c) The ACCESS PLATFORM 2M (6 FT) is in position at the AFT cargo-compartment door 826.
(d) The access panel 162CW is removed (Ref. AMM TASK 25-55-12-000-003).
Subtask 21-31-51-860-056-B ** ON A/C NOT FOR ALL (1) Make sure that:
(a) The aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
WARNING:
DO NOT OPEN OR GO NEAR PRESSURE-SEALED DOORS WHEN THE AIRCRAFT IS PRESSURIZED.
A PRESSURE-SEALED DOOR THAT OPENS WHEN THE AIRCRAFT IS PRESSURIZED:
- WILL CAUSE EXPLOSIVE DECOMPRESSION.
- CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAUSE DAMAGE TO THE AIRCRAFT OR EQUIPMENT.
WARNING:
OPEN THE ACCESS DOOR AND MAKE SURE IT STAYS OPEN.
ATTACH A WARNING NOTICE TO THE ACCESS DOOR TO TELL PERSONS NOT TO CLOSE IT.
THIS IS TO PREVENT ACCIDENTAL PRESSURIZATION OF THE AIRCRAFT BY THE AIR CONDITIONING SYSTEM IF ALL THE OTHER CABIN OPENINGS ARE CLOSED.
PRESSURIZATION OF THE AIRCRAFT CAN BE DANGEROUS.
IT CAN CAUSE A DOOR TO OPEN WITH EXPLOSIVE FORCE WHICH CAN CAUSE INJURY AND/OR DAMAGE.
(b) The AFT cargo-compartment door 826 is open (Ref. AMM TASK 52-30-00-860-001). (c) The ACCESS PLATFORM 2M (6 FT) is in position at the AFT cargo-compartment door 826.
(d) The access panel 162CW is removed (Ref. AMM TASK 25-55-12-000-003).
A. Aircraft Maintenance Configuration
(1) Make sure that:
(a) The aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(c) The ACCESS PLATFORM 2M (6 FT) is in position at the AFT cargo-compartment door 826.
(d) The access panel 162CW is removed (Ref. AMM TASK 25-55-12-000-003).
(e) The grill (9) is removed (Ref. AMM TASK 21-31-51-000-002).
Subtask 21-31-51-865-101-A (1) Make sure that:
(a) The aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
WARNING:
DO NOT OPEN OR GO NEAR PRESSURE-SEALED DOORS WHEN THE AIRCRAFT IS PRESSURIZED.
A PRESSURE-SEALED DOOR THAT OPENS WHEN THE AIRCRAFT IS PRESSURIZED:
- WILL CAUSE EXPLOSIVE DECOMPRESSION.
- CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAUSE DAMAGE TO THE AIRCRAFT OR EQUIPMENT.
WARNING:
OPEN THE ACCESS DOOR AND MAKE SURE IT STAYS OPEN.
ATTACH A WARNING NOTICE TO THE ACCESS DOOR TO TELL PERSONS NOT TO CLOSE IT.
THIS IS TO PREVENT ACCIDENTAL PRESSURIZATION OF THE AIRCRAFT BY THE AIR CONDITIONING SYSTEM IF ALL THE OTHER CABIN OPENINGS ARE CLOSED.
PRESSURIZATION OF THE AIRCRAFT CAN BE DANGEROUS.
IT CAN CAUSE A DOOR TO OPEN WITH EXPLOSIVE FORCE WHICH CAN CAUSE INJURY AND/OR DAMAGE.
(b) The AFT cargo-compartment door 826 is open (Ref. AMM TASK 52-30-00-860-001). (c) The ACCESS PLATFORM 2M (6 FT) is in position at the AFT cargo-compartment door 826.
(d) The access panel 162CW is removed (Ref. AMM TASK 25-55-12-000-003).
(e) The grill (9) is removed (Ref. AMM TASK 21-31-51-000-002).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | AIR COND/CAB/PRESS/CTL1 | 1HL | D09 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/AFT CARGO VENT/FAN | 30HN | S22 |
| ** ON A/C ALL | |||
| 122VU | AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY | 6HU | U19 |
| 122VU | AIR COND/CAB PRESS/CTL/MAN | 3HL | Y23 |
| 122VU | AIR COND/CAB PRESS/CTL/2 | 2HL | Y22 |
Subtask 21-31-51-420-051-A ** ON A/C NOT FOR ALL
A. Installation of the Electronics Module
(3) For the electronics module (33) 10HL-1:
(a) Remove the blanking caps from the electrical connectors (3) 10HL-A and (32).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connectors (3) 10HL-A and (32).
(4) For the electronics module (34) 10HL-2:
(a) Remove the blanking caps from the electrical connectors (1) 10HL-B and (38).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connectors (1) 10HL-B and (38).
(5) Make sure that the work area is clean and clear of tools and other items.
Subtask 21-31-51-420-051-B ** ON A/C NOT FOR ALL NOTE: Make sure that there is no blanking plug installed in the static port of the outflow valve electronics module.
(1) Put the electronics module (33) 10HL-1 and/or (34) 10HL-2 in position on the outflow valve (5). NOTE: Make sure that the electronics module is in position on the lower bracket location pins.
(2) Install the screws (31). (3) For the electronics module (33) 10HL-1:
(a) Remove the blanking caps from the electrical connectors (3) 10HL-A and (32).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connectors (3) 10HL-A and (32).
(4) For the electronics module (34) 10HL-2:
(a) Remove the blanking caps from the electrical connectors (1) 10HL-B and (38).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connectors (1) 10HL-B and (38).
(5) Make sure that the work area is clean and clear of tools and other items.
A. Installation of the Electronics Module
(3) For the electronics module (33) 10HL-1:
(a) Remove the blanking caps from the electrical connectors (3) 10HL-A and (32).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connectors (3) 10HL-A and (38).
(4) For the electronics module (34) 10HL-2:
(a) Remove the blanking caps from the electrical connectors (1) 10HL-B and (38).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connectors (1) 10HL-B and (38).
(5) Make sure that the work area is clean and clear of tools and other items.
(6) Put the bonding strap (4) in position and temporarily install the washer (28) and the bolt (27).
(7) Put the grill (9) in position in the retaining clips (10) and install the quick-release fasteners (12).
(8) Remove the bolt (27) and the washer (28).
(9) Put the bonding straps (4) and (11) in position and install the washer (28) and the bolt (27) (Ref. AMM TASK 20-28-00-912-802).
(10) Make sure that the work area is clean and clear of tools and other items.
Subtask 21-31-51-865-102-A NOTE: Make sure that there is no blanking plug installed in the static port of the outflow valve electronics module.
(1) Put the electronics modules (33) 10HL-1 and/or (34) 10HL-2 in position on the outflow valve (5). NOTE: Make sure that the electronics module is in position on the lower bracket location pins.
(2) Install the screws (31). (3) For the electronics module (33) 10HL-1:
(a) Remove the blanking caps from the electrical connectors (3) 10HL-A and (32).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connectors (3) 10HL-A and (38).
(4) For the electronics module (34) 10HL-2:
(a) Remove the blanking caps from the electrical connectors (1) 10HL-B and (38).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Connect the electrical connectors (1) 10HL-B and (38).
(5) Make sure that the work area is clean and clear of tools and other items.
(6) Put the bonding strap (4) in position and temporarily install the washer (28) and the bolt (27).
(7) Put the grill (9) in position in the retaining clips (10) and install the quick-release fasteners (12).
(8) Remove the bolt (27) and the washer (28).
(9) Put the bonding straps (4) and (11) in position and install the washer (28) and the bolt (27) (Ref. AMM TASK 20-28-00-912-802).
(10) 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 21-31-51-710-051-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | AIR COND/CAB/PRESS/CTL1 | 1HL | D09 |
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR COND/AFT CARGO VENT/FAN | 30HN | S22 |
| ** ON A/C ALL | |||
| 122VU | AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY | 6HU | U19 |
| 122VU | AIR COND/CAB PRESS/CTL/MAN | 3HL | Y23 |
| 122VU | AIR COND/CAB PRESS/CTL/2 | 2HL | Y22 |
C. Pressure Control and Monitoring System Tests
(2) Do the operational test of the manual pressure control and monitoring system (Ref. AMM TASK 21-31-00-710-003).
5. Close-upNOTE: The Operational Test of the Pressure Control and Monitoring System must be performed on both system channels. Ensure that TEST OK or a failure messure is displayed. If the test is interrupted it must be restarted until TEST OK or a failure message is displayed.
(1) Do the operational test of the pressure control and monitoring system (Ref. AMM TASK 21-31-00-710-002). (2) Do the operational test of the manual pressure control and monitoring system (Ref. AMM TASK 21-31-00-710-003).
Subtask 21-31-51-410-063-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 162CW (Ref. AMM TASK 25-55-12-400-003)
(3) Remove the access platform(s).
(4) Remove the warning notice and close the AFT cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-002).
Subtask 21-31-51-862-053-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panel 162CW (Ref. AMM TASK 25-55-12-400-003)
(3) Remove the access platform(s).
(4) Remove the warning notice and close the AFT cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-002).