DOC AIRBUS | AMM A320FPressurization of the Bleed System through the HP Ground Connector
TASK 36-12-00-860-002-A
Pressurization of the Bleed System through the HP Ground Connector
1. Reason for the Job
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 36-12-00-941-050-A ** ON A/C NOT FOR ALL
Subtask 36-12-00-869-056-A ** ON A/C NOT FOR ALL
Subtask 36-12-00-860-057-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:55:52 UTC
Pressurization of the Bleed System through the HP Ground Connector
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) |
| No specific | 1 | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 191DB |
| REFERENCE | DESIGNATION |
|---|---|
| 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 31-60-00-860-001-A | EIS Start Procedure |
| TASK 31-60-00-860-002-A | EIS Stop Procedure |
| TASK 52-41-00-010-002-A | Open the Avionics Compartment Doors for Access |
| TASK 52-41-00-410-002-A | Close the Avionics Compartment Doors after Access |
Subtask 36-12-00-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(2) Install a WARNING NOTICE(S) on the access door 811 to tell persons not to close the access door 811.
Subtask 36-12-00-860-056-A ** ON A/C NOT FOR ALL 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) When you operate the air condioning make sure that the access door 811 is open (Ref. AMM TASK 52-41-00-010-002). (2) Install a WARNING NOTICE(S) on the access door 811 to tell persons not to close the access door 811.
B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) On the AIR COND overhead panel 30VU:
Subtask 36-12-00-865-054-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) On the AIR COND overhead panel 30VU:
- Release the PACK 1 and PACK 2 P/BSWs to off (the OFF legends come on)
- Make sure that the X-bleed selector switch is in the AUTO position.
NOTE: To start the ENG 2, X-bleed valve selector switch must be in OPEN position.
C. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 36-12-00-010-051-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 122VU | AIR BLEED/X FEED VALVE/NORM | 1HV | Z20 |
D. Get Access
(1) Open the access door 191DB.
(2) Connect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) to the aircraft HP connector 7300HM.
4. Procedure(1) Open the access door 191DB.
(2) Connect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) to the aircraft HP connector 7300HM.
Subtask 36-12-00-869-056-A ** ON A/C NOT FOR ALL
A. Pressurization of the Bleed System through the HP Ground Connection
(1) Start the ground air-supply unit and make sure that:
(3) On the AIR BLEED page of the ECAM lower DU, make sure that all indications are shown is normal (i.e. green indication).
(4) When the pressurization of the bleed system is no longer necessary, stop the air supply.
5. Close-up(1) Start the ground air-supply unit and make sure that:
- The airflow is between 54 kg.min (119.0496 lb.min) and 78 kg.min (171.9605 lb.min)
- The supplied air pressure is not more than 3.5 bar (50.7632 psi)
- The supplied air temperature does not go above 260 deg.C (500.00 deg.F).
(3) On the AIR BLEED page of the ECAM lower DU, make sure that all indications are shown is normal (i.e. green indication).
(4) When the pressurization of the bleed system is no longer necessary, stop the air supply.
Subtask 36-12-00-860-057-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) On the AIR COND overhead panel 30VU:
(Ref. AMM TASK 31-60-00-860-002).
(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 36-12-00-410-051-A ** ON A/C NOT FOR ALL (1) On the AIR COND overhead panel 30VU:
- Push the PACK 1 and PACK 2 P/BSWs to ON (the OFF legends goes OFF)
- Make sure that the X-bleed selector switch is in the AUTO position.
(Ref. AMM TASK 31-60-00-860-002).
(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
B. Close Access
(1) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) from the aircraft HP connector 7300HM.
(2) Close the access door 191DB.
(3) If the access door 811 is open:
(1) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) from the aircraft HP connector 7300HM.
(2) Close the access door 191DB.
(3) If the access door 811 is open:
- Remove the WARNING NOTICE(S).
- Close the access door 811 (Ref. AMM TASK 52-41-00-410-002).