DOC AIRBUS | AMM A320FDecontamination of the Bleed-Air Ducting System Disconnected at Pressure Regulating Valve (PRV) (4000HA2) with Engine 1 Bleed Pressure
TASK 36-11-00-615-805-A
Decontamination of the Bleed-Air Ducting System Disconnected at Pressure Regulating Valve (PRV) (4000HA2) with Engine 1 Bleed Pressure
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 36-11-00-941-187-A ** ON A/C NOT FOR ALL
Subtask 36-11-00-615-054-A ** ON A/C NOT FOR ALL
Subtask 36-11-00-080-129-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:05:56 UTC
Decontamination of the Bleed-Air Ducting System Disconnected at Pressure Regulating Valve (PRV) (4000HA2) with Engine 1 Bleed Pressure
WARNING:
MAKE SURE THAT WHEN THE ENGINES OPERATE ON THE GROUND:
- NO PERSONS GO WHERE THE AIRCRAFT CAN CAUSE THEM INJURY OR CAN KILL THEM
- NO OBJECTS STAY WHERE THE ENGINES CAN BLOW THEM AWAY OR WHERE THEY CAN BE PULLED INTO THE ENGINES BY SUCTION.
WARNING:
MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING:
BE CAREFUL WHEN THE DUCTS ARE DISCONNECTED THE TEMPERATURE OF THE EXHAUST GASES FROM THE OPEN ENDS OF THE DISCONNECTED DUCTS CAN BE AS HIGH AS 270 DEG.C (518 DEG.F). THE HOT GASES CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING:
ALWAYS USE APPLICABLE GLOVES TO TOUCH HOT PARTS. HOT PARTS CAN CAUSE INJURY TO PERSONS.
ZONE: 420
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | BLANKET - HEAT ISOLATION |
| No specific | AR | COVER - PROTECTION |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 98F10103500000 | AR | CHOCK-MLG,ENGINE RUN-UP |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 420 | ENG 2 PYLON BOX AND FORWARD FAIRING |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 21-51-00-710-002-A | Operational Test of the Flow Control and Indicating 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 31-60-00-860-001-A | EIS Start Procedure |
| TASK 31-60-00-860-002-A | EIS Stop Procedure |
| TASK 36-11-00-720-005-A | Leak Check of Engine Bleed Air Supply System and Packs Components with APU Bleed Air |
| TASK 36-11-49-000-001-A | Removal of the Mid Stage Tee Duct |
| TASK 36-11-49-000-010-B | Removal of the Upper Bleed-Air Duct |
| TASK 36-11-49-000-040-A | Removal of the Pylon Interface Duct |
| TASK 36-11-49-000-042-A | Removal of the Pylon Interface Duct |
| TASK 36-11-49-000-043-A | Removal of the Mid Stage Tee Duct |
| TASK 36-11-49-400-001-A | Installation of the Mid Stage Tee Duct |
| TASK 36-11-49-400-010-B | Installation of the Upper Bleed-Air Duct |
| TASK 36-11-49-400-040-A | Installation of the Pylon Interface Duct |
| TASK 36-11-49-400-042-A | Installation of the Pylon Interface Duct |
| TASK 36-11-49-400-043-A | Installation of the Mid Stage Tee Duct |
| TASK 71-00-00-710-003-A | Engine Automatic Start |
| TASK 71-00-00-710-003-B | Engine Automatic Start |
| TASK 71-00-00-710-018-A | Discontinued Start, Restart and Shutdown Procedures |
| TASK 71-00-00-710-028-A | Engine Shutdown |
| TASK 71-00-00-710-028-B | Engine Shutdown |
| TASK 71-00-00-710-043-A | Normal Engine Automatic-Start Procedure |
| TASK 71-00-00-860-012-A | Engine Safety Precautions |
| TASK 71-00-00-869-004-A | Safety Precautions During Engine Ground Operations |
| TASK 71-00-00-869-006-A | Safety Precautions During Engine Ground Operations |
Tool InstallationSubtask 36-11-00-941-187-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Obey the safety precautions during engine ground operations (Ref. AMM TASK 71-00-00-869-006).
(2)
Subtask 36-11-00-941-187-B ** ON A/C NOT FOR ALL (1) Obey the safety precautions during engine ground operations (Ref. AMM TASK 71-00-00-869-006).
(2)
A. Safety Precautions
(1) Obey the safety precautions during engine ground operations (Ref. AMM TASK 71-00-00-860-012).
(2)
Subtask 36-11-00-941-187-D ** ON A/C NOT FOR ALL (1) Obey the safety precautions during engine ground operations (Ref. AMM TASK 71-00-00-860-012).
(2)
A. Safety Precautions
(1) Obey the safety precautions during engine ground operations (Ref. AMM TASK 71-00-00-869-004).
(2)
Subtask 36-11-00-865-262-A ** ON A/C NOT FOR ALL (1) Obey the safety precautions during engine ground operations (Ref. AMM TASK 71-00-00-869-004).
(2)
B. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 36-11-00-865-222-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR BLEED/X FEED/VALVE/BAT | 2HV | D13 |
| 49VU | AIR BLEED/ENG 1/CTL | 3HA1 | D12 |
| 49VU | AIR BLEED/ENG 1/MONG | 2HA1 | D11 |
| 122VU | AIR BLEED/X FEED VALVE/NORM | 1HV | Z20 |
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 36-11-00-860-232-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC | 52HH | D08 |
| 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 |
D. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits from the external power
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(3) In the cockpit, on AIR COND panel 30VU:
(a) Make sure that the ENG 1 and 2 BLEED pushbutton-switches are released (the OFF legends are on).
(b) Make sure that the APU BLEED pushbutton-switch is released (the ON legend is off).
(c) Make sure that the PACK 1 and 2 pushbutton switches are released (the OFF legends are on).
(d) Make sure that the PACK FLOW selector-switch is set to LO.
(e) Make sure that the X BLEED selector-switch is in the AUTO position.
(4) On the HP ground connector (7300HM):
(a) Put a WARNING NOTICE(S) in position to tell persons not to pressurize the pneumatic system.
Subtask 36-11-00-480-152-A ** ON A/C NOT FOR ALL (1) Energize the aircraft electrical circuits from the external power
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(3) In the cockpit, on AIR COND panel 30VU:
(a) Make sure that the ENG 1 and 2 BLEED pushbutton-switches are released (the OFF legends are on).
(b) Make sure that the APU BLEED pushbutton-switch is released (the ON legend is off).
(c) Make sure that the PACK 1 and 2 pushbutton switches are released (the OFF legends are on).
(d) Make sure that the PACK FLOW selector-switch is set to LO.
(e) Make sure that the X BLEED selector-switch is in the AUTO position.
(4) On the HP ground connector (7300HM):
(a) Put a WARNING NOTICE(S) in position to tell persons not to pressurize the pneumatic system.
E. Preparation for Cleaning of the Bleed-Air Ducting System
(1) Remove the engine bleed-air duct from the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-000-040).
(2) Point the bleed-air joint duct away from the engine and the electrical cables or equipment.
(4) Put the BLANKET - HEAT ISOLATION on the adjacent electrical cables and components.
Subtask 36-11-00-480-152-B ** ON A/C NOT FOR ALL (1) Remove the engine bleed-air duct from the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-000-040).
(2) Point the bleed-air joint duct away from the engine and the electrical cables or equipment.
NOTE: The open end of the bleed-air joint duct points in the direction where the hot bleed air is released freely to the atmosphere.
(3) Put a COVER - PROTECTION on the open end of the PRV (4000HA2).(4) Put the BLANKET - HEAT ISOLATION on the adjacent electrical cables and components.
E. Preparation for Cleaning of the Bleed-Air Ducting System
(1) Remove the engine bleed-air duct from the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-000-010).
(2) Point the bleed-air joint duct away from the engine and the electrical cables or equipment.
(4) Put the BLANKET - HEAT ISOLATION on the adjacent electrical cables and components.
Subtask 36-11-00-480-152-D ** ON A/C NOT FOR ALL (1) Remove the engine bleed-air duct from the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-000-010).
(2) Point the bleed-air joint duct away from the engine and the electrical cables or equipment.
NOTE: The open end of the bleed-air joint duct points in the direction where the hot bleed air is released freely to the atmosphere.
(3) Put a COVER - PROTECTION on the open end of the PRV (4000HA2).(4) Put the BLANKET - HEAT ISOLATION on the adjacent electrical cables and components.
E. Preparation for Cleaning of the Bleed-Air Ducting System
(1) Remove the engine bleed-air duct from the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-000-043).
(2) Point the bleed-air joint duct away from the engine and the electrical cables or equipment.
(4) Put the BLANKET - HEAT ISOLATION on the adjacent electrical cables and components.
Subtask 36-11-00-480-152-E (1) Remove the engine bleed-air duct from the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-000-043).
(2) Point the bleed-air joint duct away from the engine and the electrical cables or equipment.
NOTE: The open end of the bleed-air joint duct points in the direction where the hot bleed air is released freely to the atmosphere.
(3) Put a COVER - PROTECTION on the open end of the PRV (4000HA2).(4) Put the BLANKET - HEAT ISOLATION on the adjacent electrical cables and components.
DELETED
Subtask 36-11-00-480-152-F DELETED
4. ProcedureSubtask 36-11-00-615-054-A ** ON A/C NOT FOR ALL
A. Cleaning of the Odor Smell in the Engine Bleed-Air System-Ducting
(2) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Set the X BLEED selector switch to the OPEN position.
(3) On the ECAM control panel, push the BLEED key:
(a) On the SD, the BLEED page comes into view.
(b) The BLEED page shows that the X BLEED valve is OPEN.
(4) On the ECAM display, make sure that the engine 1 bleed-temperature is 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F):
(a) If necessary, slowly push ENGINE-1 thrust lever to make the engine bleed temperature to 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F). Not reach more than 40% of N1.
(5) Wait for a minimum of 15 minutes.
(6) The ECAM control panel can show abnormal BLEED and pack fault messages.
(8) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(9) Stop engine 1 (Ref. AMM TASK 71-00-00-710-028).
Subtask 36-11-00-615-054-B ** ON A/C NOT FOR ALL WARNING:
MAKE SURE THAT WHEN THE ENGINES OPERATE ON THE GROUND:
(1) Start engine 1 and keep the engine RPM to idle (Ref. AMM TASK 71-00-00-710-003). - NO PERSONS GO WHERE THE AIRCRAFT CAN CAUSE THEM INJURY OR CAN KILL THEM
- NO OBJECTS STAY WHERE THE ENGINES CAN BLOW THEM AWAY OR WHERE THEY CAN BE PULLED INTO THE ENGINES BY SUCTION.
(2) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Set the X BLEED selector switch to the OPEN position.
(3) On the ECAM control panel, push the BLEED key:
(a) On the SD, the BLEED page comes into view.
(b) The BLEED page shows that the X BLEED valve is OPEN.
(4) On the ECAM display, make sure that the engine 1 bleed-temperature is 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F):
(a) If necessary, slowly push ENGINE-1 thrust lever to make the engine bleed temperature to 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F). Not reach more than 40% of N1.
(5) Wait for a minimum of 15 minutes.
(6) The ECAM control panel can show abnormal BLEED and pack fault messages.
NOTE: The system operates correctly and it is not important to do the related troubleshooting procedure at this step.
(7) Slowly pull ENGINE-1 thrust lever to the idle position. (8) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(9) Stop engine 1 (Ref. AMM TASK 71-00-00-710-028).
A. Cleaning of the Odor Smell in the Engine Bleed-Air System-Ducting
(2) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Set the X BLEED selector switch to the OPEN position.
(3) On the ECAM control panel, push the BLEED key:
(a) On the SD, the BLEED page comes into view.
(b) The BLEED page shows that the X BLEED valve is OPEN.
(4) On the ECAM display, make sure that the engine 1 bleed-temperature is 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F):
(a) If necessary, slowly push ENGINE-1 thrust lever to make the engine bleed temperature to 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F). Not reach more than 40% of N1.
(5) Wait for a minimum of 15 minutes.
(6) The ECAM control panel can show abnormal BLEED and pack fault messages.
(8) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(9) Stop engine 1 (Ref. AMM TASK 71-00-00-710-018).
Subtask 36-11-00-615-054-D ** ON A/C NOT FOR ALL WARNING:
MAKE SURE THAT WHEN THE ENGINES OPERATE ON THE GROUND:
(1) Start engine 1 and keep the engine RPM to idle (Ref. AMM TASK 71-00-00-710-043). - NO PERSONS GO WHERE THE AIRCRAFT CAN CAUSE THEM INJURY OR CAN KILL THEM
- NO OBJECTS STAY WHERE THE ENGINES CAN BLOW THEM AWAY OR WHERE THEY CAN BE PULLED INTO THE ENGINES BY SUCTION.
(2) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Set the X BLEED selector switch to the OPEN position.
(3) On the ECAM control panel, push the BLEED key:
(a) On the SD, the BLEED page comes into view.
(b) The BLEED page shows that the X BLEED valve is OPEN.
(4) On the ECAM display, make sure that the engine 1 bleed-temperature is 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F):
(a) If necessary, slowly push ENGINE-1 thrust lever to make the engine bleed temperature to 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F). Not reach more than 40% of N1.
(5) Wait for a minimum of 15 minutes.
(6) The ECAM control panel can show abnormal BLEED and pack fault messages.
NOTE: The system operates correctly and it is not important to do the related troubleshooting procedure at this step.
(7) Slowly pull ENGINE-1 thrust lever to the idle position. (8) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(9) Stop engine 1 (Ref. AMM TASK 71-00-00-710-018).
A. Cleaning of the Odor Smell in the Engine Bleed-Air System-Ducting
(2) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Set the X BLEED selector switch to the OPEN position.
(3) On the ECAM control panel, push the BLEED key:
(a) On the SD, the BLEED page comes into view.
(b) The BLEED page shows that the X BLEED valve is OPEN.
(4) On the ECAM display, make sure that the engine 1 bleed-temperature is 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F):
(a) If necessary, slowly push ENGINE-1 thrust lever to make the engine bleed temperature to 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F). Not reach more than 40% of N1.
(5) Wait for a minimum of 15 minutes.
(6) The ECAM control panel can show abnormal BLEED and pack fault messages.
(8) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(9) Stop engine 1 (Ref. AMM TASK 71-00-00-710-028).
5. Close-upWARNING:
MAKE SURE THAT WHEN THE ENGINES OPERATE ON THE GROUND:
(1) Start engine 1 and keep the engine RPM to idle (Ref. AMM TASK 71-00-00-710-003). - NO PERSONS GO WHERE THE AIRCRAFT CAN CAUSE THEM INJURY OR CAN KILL THEM
- NO OBJECTS STAY WHERE THE ENGINES CAN BLOW THEM AWAY OR WHERE THEY CAN BE PULLED INTO THE ENGINES BY SUCTION.
(2) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Set the X BLEED selector switch to the OPEN position.
(3) On the ECAM control panel, push the BLEED key:
(a) On the SD, the BLEED page comes into view.
(b) The BLEED page shows that the X BLEED valve is OPEN.
(4) On the ECAM display, make sure that the engine 1 bleed-temperature is 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F):
(a) If necessary, slowly push ENGINE-1 thrust lever to make the engine bleed temperature to 230 -15 DEG.C or +10 DEG.C (446 -27 DEG.F or +18 DEG.F). Not reach more than 40% of N1.
(5) Wait for a minimum of 15 minutes.
(6) The ECAM control panel can show abnormal BLEED and pack fault messages.
NOTE: The system operates correctly and it is not important to do the related troubleshooting procedure at this step.
(7) Slowly pull ENGINE-1 thrust lever to the idle position. (8) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 1 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(9) Stop engine 1 (Ref. AMM TASK 71-00-00-710-028).
Subtask 36-11-00-080-129-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the BLANKET - HEAT ISOLATION from the adjacent electrical cables and components.
(3) Remove the COVER - PROTECTION from the open end of the PRV (4000HA2).
(4) Install the bleed air duct in the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-400-001) and (Ref. AMM TASK 36-11-49-400-040).
Subtask 36-11-00-080-129-B ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the BLANKET - HEAT ISOLATION from the adjacent electrical cables and components.
(3) Remove the COVER - PROTECTION from the open end of the PRV (4000HA2).
(4) Install the bleed air duct in the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-400-001) and (Ref. AMM TASK 36-11-49-400-040).
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the BLANKET - HEAT ISOLATION from the adjacent electrical cables and components.
(3) Remove the COVER - PROTECTION from the open end of the PRV (4000HA2).
(4) Install the bleed air duct in the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-400-010).
Subtask 36-11-00-080-129-D ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the BLANKET - HEAT ISOLATION from the adjacent electrical cables and components.
(3) Remove the COVER - PROTECTION from the open end of the PRV (4000HA2).
(4) Install the bleed air duct in the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-400-010).
A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the BLANKET - HEAT ISOLATION from the adjacent electrical cables and components.
(3) Remove the COVER - PROTECTION from the open end of the PRV (4000HA2).
(4) Install the bleed air duct in the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-400-042) and (Ref. AMM TASK 36-11-49-400-043).
Subtask 36-11-00-080-129-E (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the BLANKET - HEAT ISOLATION from the adjacent electrical cables and components.
(3) Remove the COVER - PROTECTION from the open end of the PRV (4000HA2).
(4) Install the bleed air duct in the PRV (4000HA2) of engine 2 (Ref. AMM TASK 36-11-49-400-042) and (Ref. AMM TASK 36-11-49-400-043).
DELETED
Subtask 36-11-00-080-129-F DELETED
Subtask 36-11-00-865-224-A ** ON A/C NOT FOR ALL B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 36-11-00-790-082-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC | 52HH | D08 |
| 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 |
C. Leak Test
(1) Do a leak test of the bleed air-duct system (Ref. AMM TASK 36-11-00-720-005):
(a) Make sure that there are no leaks.
Subtask 36-11-00-710-071-A ** ON A/C NOT FOR ALL (1) Do a leak test of the bleed air-duct system (Ref. AMM TASK 36-11-00-720-005):
(a) Make sure that there are no leaks.
D. Operational Test
(1) Do an operational test of the flow control and indicating system (Ref. AMM TASK 21-51-00-710-002).
Subtask 36-11-00-860-233-A ** ON A/C NOT FOR ALL (1) Do an operational test of the flow control and indicating system (Ref. AMM TASK 21-51-00-710-002).
E. Aircraft Maintenance Configuration
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(3) De-energize the aircraft electrical circuits supplied from the external power
(Ref. AMM TASK 24-41-00-862-002).
(4) Remove the WARNING NOTICE(S).
(5) Remove the 98F10103500000 CHOCK-MLG,ENGINE RUN-UP.
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(3) De-energize the aircraft electrical circuits supplied from the external power
(Ref. AMM TASK 24-41-00-862-002).
(4) Remove the WARNING NOTICE(S).
(5) Remove the 98F10103500000 CHOCK-MLG,ENGINE RUN-UP.