DOC AIRBUS | AMM A320FDecontamination of the Bleed-Air Ducting System Disconnected at APU Load-Compressor Valve with Engine 2 Bleed Pressure
TASK 36-12-00-615-802-A-02
Decontamination of the Bleed-Air Ducting System Disconnected at APU Load-Compressor Valve with Engine 2 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 36-12-00-941-076-A ** ON A/C NOT FOR ALL
Subtask 36-12-00-615-068-A ** ON A/C NOT FOR ALL
Subtask 36-12-00-080-069-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:14:29 UTC
Decontamination of the Bleed-Air Ducting System Disconnected at APU Load-Compressor Valve with Engine 2 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:
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:
MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING:
ALWAYS USE APPLICABLE GLOVES TO TOUCH HOT PARTS. HOT PARTS CAN CAUSE INJURY TO PERSONS.
WARNING:
DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).
1. Reason for the JobSelf 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 | AR | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 98D36109005001 | 1 | DUMMY CHECK VLV - APU |
| 98D36109006000 | 1 | BLEED EXHAUST - APU |
| 98F10103500000 | AR | CHOCK-MLG,ENGINE RUN-UP |
| SBE2272 | 1 | TCT 230 DEG CELCIUS - BLEED |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 192 | AIR CONDITIONING COMPT AND FAIRINGS |
| 197 | REAR FAIRING |
| 211 | COCKPIT |
| 420 | ENG 2 PYLON BOX AND FORWARD FAIRING |
| 197BB | |
| 197KB |
| 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 31-60-00-860-001-A | EIS Start Procedure |
| TASK 31-60-00-860-002-A | EIS Stop Procedure |
| TASK 36-11-43-000-001-A | Removal of the Fan-Air Valve Control-Thermostat |
| TASK 36-11-43-400-001-A | Installation of the Fan-Air Valve Control-Thermostat |
| TASK 36-12-41-000-001-A | Removal of a Bleed-Air Duct |
| TASK 36-12-41-400-001-A | Installation of a Bleed-Air Duct |
| TASK 36-12-51-000-001-A | Removal of the APU Bleed Check-Valve |
| TASK 36-12-51-400-001-A | Installation of the APU Bleed Check-Valve |
| TASK 36-22-00-790-001-A | Leak Check on all the Bleed Air Ducts and the Packs Components |
| TASK 52-41-00-010-001-A | Open the APU Doors for Access |
| TASK 52-41-00-410-001-A | Close the APU Doors after Access |
| 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 |
| 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 36-12-00-941-076-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Obey the safety precautions during the engine ground operations (Ref. AMM TASK 71-00-00-869-006).
(2)
Subtask 36-12-00-941-076-B ** ON A/C NOT FOR ALL (1) Obey the safety precautions during the engine ground operations (Ref. AMM TASK 71-00-00-869-006).
(2)
A. Safety Precautions
(1) Obey the safety precautions during the engine ground operations (Ref. AMM TASK 71-00-00-860-012).
(2)
Subtask 36-12-00-941-076-D ** ON A/C NOT FOR ALL (1) Obey the safety precautions during the engine ground operations (Ref. AMM TASK 71-00-00-860-012).
(2)
A. Safety Precautions
(1) Obey the safety precautions during the engine ground operations (Ref. AMM TASK 71-00-00-869-004).
(2)
Subtask 36-12-00-865-147-A ** ON A/C NOT FOR ALL (1) Obey the safety precautions during the 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 36-12-00-865-148-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 |
| 122VU | AIR BLEED/X FEED VALVE/NORM | 1HV | Z20 |
| FOR FIN: 1000EM2 (ENGINE2) | |||
| 122VU | AIR BLEED/ENG 2/CTL | 3HA2 | Z23 |
| 122VU | AIR BLEED/ENG 2/MONG | 2HA2 | Z22 |
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 36-12-00-860-141-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
| 121VU | APU/FIRE/EXTIG/SQUIB/B | 2WF | L39 |
| 121VU | APU/FIRE/EXTIG/SQUIB/A | 1WF | L38 |
| 121VU | APU/FIRE/LP VALVE/NORM | 4WF | M42 |
| 121VU | APU/FIRE/LP VALVE/STBY | 3WF | M41 |
| ** 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 |
D. 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) 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 position.
(e) Set the X BLEED selector switch to the SHUT position.
(f) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the pneumatic system on the bleed pushbutton switches.
(4) In the cockpit, on OVERHEAD CTL & IND panel 25VU:
(a) Put the WARNING NOTICE(S) in position to tell the persons not to start the APU.
Subtask 36-12-00-480-069-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) 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 position.
(e) Set the X BLEED selector switch to the SHUT position.
(f) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the pneumatic system on the bleed pushbutton switches.
(4) In the cockpit, on OVERHEAD CTL & IND panel 25VU:
(a) Put the WARNING NOTICE(S) in position to tell the persons not to start the APU.
E. Preparation for Cleaning of the Bleed-Air Ducting System
(1) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED as follows:
(a) Remove the Fan Air Valve (FAV) control thermostat (Ref. AMM TASK 36-11-43-000-001).
(b) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-400-001).
(2) Install the 98D36109006000 BLEED EXHAUST - APU as follows:
(a) Open the APU doors for access (Ref. AMM TASK 52-41-00-010-001).
(b) Disconnect the bleed-air ducting system from the APU load-compressor valve (Ref. AMM TASK 36-12-41-000-001).
(c)
(e) Make sure that the bleed air is pointed away from the aircraft.
(3) Install the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(a) Remove access panel 197BB (Ref. AMM TASK 53-35-13-000-002).
(b) Remove the APU bleed check-valve (Ref. AMM TASK 36-12-51-000-001).
(c)
(a) In the cockpit, on AIR COND panel 30VU:
1 Make sure that the ENG 2 BLEED pushbutton switch is released (the OFF legend is on).
2 Make sure that the X BLEED selector switch is in the SHUT position:
a Put the WARNING NOTICE(S) in position to tell persons not to operate the X BLEED selector switch.
(5) On the BLEED page, make sure that the Pressure Regulating Valve 2 (PRV 2) (4000HA2) and the APU bleed valve are closed.
(6) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE).
Subtask 36-12-00-480-069-D ** ON A/C NOT FOR ALL (1) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED as follows:
(a) Remove the Fan Air Valve (FAV) control thermostat (Ref. AMM TASK 36-11-43-000-001).
(b) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-400-001).
(2) Install the 98D36109006000 BLEED EXHAUST - APU as follows:
(a) Open the APU doors for access (Ref. AMM TASK 52-41-00-010-001).
(b) Disconnect the bleed-air ducting system from the APU load-compressor valve (Ref. AMM TASK 36-12-41-000-001).
(c)
NOTE: You can change the bleed duct orientation to install the tool easily.
(d) Install the PLUG - BLANKING to the open end of the APU load-compressor valve.(e) Make sure that the bleed air is pointed away from the aircraft.
(3) Install the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(a) Remove access panel 197BB (Ref. AMM TASK 53-35-13-000-002).
(b) Remove the APU bleed check-valve (Ref. AMM TASK 36-12-51-000-001).
(c)
WARNING:
MAKE SURE THAT WHEN THE ENGINES OPERATE ON THE GROUND:
(4) Start engine 2 with the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) 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.
(a) In the cockpit, on AIR COND panel 30VU:
1 Make sure that the ENG 2 BLEED pushbutton switch is released (the OFF legend is on).
2 Make sure that the X BLEED selector switch is in the SHUT position:
a Put the WARNING NOTICE(S) in position to tell persons not to operate the X BLEED selector switch.
(5) On the BLEED page, make sure that the Pressure Regulating Valve 2 (PRV 2) (4000HA2) and the APU bleed valve are closed.
(6) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE).
NOTE: Airbus recommends you to use the external fire-extinguishing agents in case of fire in the engine tailpipe during the engine shutdown procedure (as the monitoring function is not available).
(7) Get access to the 98D36109005001 DUMMY CHECK VLV - APU and set it to the OPEN position.E. Preparation for Cleaning of the Bleed-Air Ducting System
(1) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED as follows:
(a) Remove the Fan Air Valve (FAV) control thermostat (Ref. AMM TASK 36-11-43-000-001).
(b) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-400-001).
(2) Install the 98D36109006000 BLEED EXHAUST - APU as follows:
(a) Open the APU doors for access (Ref. AMM TASK 52-41-00-010-001).
(b) Disconnect the bleed-air ducting system from the APU load-compressor valve (Ref. AMM TASK 36-12-41-000-001).
(c)
(e) Make sure that the bleed air is pointed away from the aircraft.
(3) Install the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(a) Remove access panel 197BB (Ref. AMM TASK 53-35-13-000-002).
(b) Remove the APU bleed check-valve (Ref. AMM TASK 36-12-51-000-001).
(c)
(a) In the cockpit, on AIR COND panel 30VU:
1 Make sure that the ENG 2 BLEED pushbutton switch is released (the OFF legend is on).
2 Make sure that the X BLEED selector switch is in the SHUT position:
a Put the WARNING NOTICE(S) in position to tell persons not to operate the X BLEED selector switch.
(5) On the BLEED page, make sure that the Pressure Regulating Valve 2 (PRV 2) (4000HA2) and the APU bleed valve are closed.
(6) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE).
Subtask 36-12-00-480-069-E ** ON A/C NOT FOR ALL (1) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED as follows:
(a) Remove the Fan Air Valve (FAV) control thermostat (Ref. AMM TASK 36-11-43-000-001).
(b) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-400-001).
(2) Install the 98D36109006000 BLEED EXHAUST - APU as follows:
(a) Open the APU doors for access (Ref. AMM TASK 52-41-00-010-001).
(b) Disconnect the bleed-air ducting system from the APU load-compressor valve (Ref. AMM TASK 36-12-41-000-001).
(c)
NOTE: You can change the bleed duct orientation to install the tool easily.
(d) Install the PLUG - BLANKING to the open end of the APU load-compressor valve.(e) Make sure that the bleed air is pointed away from the aircraft.
(3) Install the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(a) Remove access panel 197BB (Ref. AMM TASK 53-35-13-000-002).
(b) Remove the APU bleed check-valve (Ref. AMM TASK 36-12-51-000-001).
(c)
WARNING:
MAKE SURE THAT WHEN THE ENGINES OPERATE ON THE GROUND:
(4) Start engine 2 with the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) 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.
(a) In the cockpit, on AIR COND panel 30VU:
1 Make sure that the ENG 2 BLEED pushbutton switch is released (the OFF legend is on).
2 Make sure that the X BLEED selector switch is in the SHUT position:
a Put the WARNING NOTICE(S) in position to tell persons not to operate the X BLEED selector switch.
(5) On the BLEED page, make sure that the Pressure Regulating Valve 2 (PRV 2) (4000HA2) and the APU bleed valve are closed.
(6) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE).
NOTE: Airbus recommends you to use the external fire-extinguishing agents in case of fire in the engine tailpipe during the engine shutdown procedure (as the monitoring function is not available).
(7) Get access to the 98D36109005001 DUMMY CHECK VLV - APU and set it to the OPEN position.E. Preparation for Cleaning of the Bleed-Air Ducting System
(1) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED as follows:
(a) Remove the Fan Air Valve (FAV) control thermostat (Ref. AMM TASK 36-11-43-000-001).
(b) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-400-001).
(2) Install the 98D36109006000 BLEED EXHAUST - APU as follows:
(a) Open the APU doors for access (Ref. AMM TASK 52-41-00-010-001).
(b) Disconnect the bleed-air ducting system from the APU load-compressor valve (Ref. AMM TASK 36-12-41-000-001).
(c)
(e) Make sure that the bleed air is pointed away from the aircraft.
(3) Install the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(a) Remove access panel 197KB (Ref. AMM TASK 53-35-13-000-002).
(b) Remove the APU bleed check-valve (Ref. AMM TASK 36-12-51-000-001).
(c)
(a) In the cockpit, on AIR COND panel 30VU:
1 Make sure that the ENG 2 BLEED pushbutton switch is released (the OFF legend is on).
2 Make sure that the X BLEED selector switch is in the SHUT position:
a Put the WARNING NOTICE(S) in position to tell persons not to operate the X BLEED selector switch.
(5) On the BLEED page, make sure that the Pressure Regulating Valve 2 (PRV 2) (4000HA2) and the APU bleed valve are closed.
(6) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE).
Subtask 36-12-00-480-069-F ** ON A/C NOT FOR ALL (1) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED as follows:
(a) Remove the Fan Air Valve (FAV) control thermostat (Ref. AMM TASK 36-11-43-000-001).
(b) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-400-001).
(2) Install the 98D36109006000 BLEED EXHAUST - APU as follows:
(a) Open the APU doors for access (Ref. AMM TASK 52-41-00-010-001).
(b) Disconnect the bleed-air ducting system from the APU load-compressor valve (Ref. AMM TASK 36-12-41-000-001).
(c)
NOTE: You can change the bleed duct orientation to install the tool easily.
(d) Install the PLUG - BLANKING to the open end of the APU load-compressor valve.(e) Make sure that the bleed air is pointed away from the aircraft.
(3) Install the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(a) Remove access panel 197KB (Ref. AMM TASK 53-35-13-000-002).
(b) Remove the APU bleed check-valve (Ref. AMM TASK 36-12-51-000-001).
(c)
WARNING:
MAKE SURE THAT WHEN THE ENGINES OPERATE ON THE GROUND:
(4) Start engine 2 with the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) 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.
(a) In the cockpit, on AIR COND panel 30VU:
1 Make sure that the ENG 2 BLEED pushbutton switch is released (the OFF legend is on).
2 Make sure that the X BLEED selector switch is in the SHUT position:
a Put the WARNING NOTICE(S) in position to tell persons not to operate the X BLEED selector switch.
(5) On the BLEED page, make sure that the Pressure Regulating Valve 2 (PRV 2) (4000HA2) and the APU bleed valve are closed.
(6) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE).
NOTE: Airbus recommends you to use the external fire-extinguishing agents in case of fire in the engine tailpipe during the engine shutdown procedure (as the monitoring function is not available).
(7) Get access to the 98D36109005001 DUMMY CHECK VLV - APU and set it to the OPEN position.E. Preparation for Cleaning of the Bleed-Air Ducting System
(1) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED as follows:
(a) Remove the Fan Air Valve (FAV) control thermostat (Ref. AMM TASK 36-11-43-000-001).
(b) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-400-001).
(2) Install the 98D36109006000 BLEED EXHAUST - APU as follows:
(a) Open the APU doors for access (Ref. AMM TASK 52-41-00-010-001).
(b) Disconnect the bleed-air ducting system from the APU load-compressor valve (Ref. AMM TASK 36-12-41-000-001).
(c)
(e) Make sure that the bleed air is pointed away from the aircraft.
(3) Install the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(a) Remove access panel 197KB (Ref. AMM TASK 53-35-13-000-002).
(b) Remove the APU bleed check-valve (Ref. AMM TASK 36-12-51-000-001).
(c)
(a) In the cockpit, on AIR COND panel 30VU:
1 Make sure that the ENG 2 BLEED pushbutton switch is released (the OFF legend is on).
2 Make sure that the X BLEED selector switch is in the SHUT position:
a Put the WARNING NOTICE(S) in position to tell persons not to operate the X BLEED selector switch.
(5) On the BLEED page, make sure that the Pressure Regulating Valve 2 (PRV 2) (4000HA2) and the APU bleed valve are closed.
(6) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE).
4. Procedure(1) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED as follows:
(a) Remove the Fan Air Valve (FAV) control thermostat (Ref. AMM TASK 36-11-43-000-001).
(b) Install the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-400-001).
(2) Install the 98D36109006000 BLEED EXHAUST - APU as follows:
(a) Open the APU doors for access (Ref. AMM TASK 52-41-00-010-001).
(b) Disconnect the bleed-air ducting system from the APU load-compressor valve (Ref. AMM TASK 36-12-41-000-001).
(c)
NOTE: You can change the bleed duct orientation to install the tool easily.
(d) Install the PLUG - BLANKING to the open end of the APU load-compressor valve.(e) Make sure that the bleed air is pointed away from the aircraft.
(3) Install the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(a) Remove access panel 197KB (Ref. AMM TASK 53-35-13-000-002).
(b) Remove the APU bleed check-valve (Ref. AMM TASK 36-12-51-000-001).
(c)
WARNING:
MAKE SURE THAT WHEN THE ENGINES OPERATE ON THE GROUND:
(4) Start engine 2 with the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) 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.
(a) In the cockpit, on AIR COND panel 30VU:
1 Make sure that the ENG 2 BLEED pushbutton switch is released (the OFF legend is on).
2 Make sure that the X BLEED selector switch is in the SHUT position:
a Put the WARNING NOTICE(S) in position to tell persons not to operate the X BLEED selector switch.
(5) On the BLEED page, make sure that the Pressure Regulating Valve 2 (PRV 2) (4000HA2) and the APU bleed valve are closed.
(6) Disconnect the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE).
NOTE: Airbus recommends you to use the external fire-extinguishing agents in case of fire in the engine tailpipe during the engine shutdown procedure (as the monitoring function is not available).
(7) Get access to the 98D36109005001 DUMMY CHECK VLV - APU and set it to the OPEN position.Subtask 36-12-00-615-068-A ** ON A/C NOT FOR ALL
A. Cleaning of the Odor Smell in the Bleed-Air Ducting System
(a) Set the ENG 2 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Remove the WARNING NOTICE(S) and set the X BLEED selector switch to the OPEN position.
(2) 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 PRV 2 (4000HA2) is the OPEN position.
(c) The BLEED page shows that the X BLEED valve is the OPEN position.
(3) On the ECAM display, make sure that the engine bleed temperature is 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F):
(a) If necessary, slowly push the ENGINE-2 thrust lever to make the engine bleed temperature to 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F). Not reach more than 40% of N1.
(4) Wait for a minimum of 15 minutes.
(5) The ECAM control panel can show the unusual BLEED and the pack fault messages.
(7) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 2 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(8) Stop engine 2 (Ref. AMM TASK 71-00-00-710-028).
Subtask 36-12-00-615-068-B ** ON A/C NOT FOR ALL 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.
(1) In the cockpit, on AIR COND panel 30VU:(a) Set the ENG 2 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Remove the WARNING NOTICE(S) and set the X BLEED selector switch to the OPEN position.
(2) 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 PRV 2 (4000HA2) is the OPEN position.
(c) The BLEED page shows that the X BLEED valve is the OPEN position.
(3) On the ECAM display, make sure that the engine bleed temperature is 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F):
(a) If necessary, slowly push the ENGINE-2 thrust lever to make the engine bleed temperature to 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F). Not reach more than 40% of N1.
(4) Wait for a minimum of 15 minutes.
(5) The ECAM control panel can show the unusual BLEED and the pack fault messages.
NOTE: The system operates correctly and it is not necessary to do the related troubleshooting procedure at this step.
(6) Slowly pull the ENGINE-2 thrust lever to the idle position. (7) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 2 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(8) Stop engine 2 (Ref. AMM TASK 71-00-00-710-028).
A. Cleaning of the Odor Smell in the Bleed-Air Ducting System
(a) Set the ENG 2 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Remove the WARNING NOTICE(S) and set the X BLEED selector switch to the OPEN position.
(2) 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 PRV 2 (4000HA2) is the OPEN position.
(c) The BLEED page shows that the X BLEED valve is the OPEN position.
(3) On the ECAM display, make sure that the engine bleed temperature is 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F):
(a) If necessary, slowly push the ENGINE-2 thrust lever to make the engine bleed temperature to 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F). Not reach more than 40% of N1.
(4) Wait for a minimum of 15 minutes.
(5) The ECAM control panel can show the unusual BLEED and the pack fault messages.
(7) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 2 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(8) Stop engine 2 (Ref. AMM TASK 71-00-00-710-018).
Subtask 36-12-00-615-068-D ** ON A/C NOT FOR ALL 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.
(1) In the cockpit, on AIR COND panel 30VU:(a) Set the ENG 2 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Remove the WARNING NOTICE(S) and set the X BLEED selector switch to the OPEN position.
(2) 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 PRV 2 (4000HA2) is the OPEN position.
(c) The BLEED page shows that the X BLEED valve is the OPEN position.
(3) On the ECAM display, make sure that the engine bleed temperature is 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F):
(a) If necessary, slowly push the ENGINE-2 thrust lever to make the engine bleed temperature to 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F). Not reach more than 40% of N1.
(4) Wait for a minimum of 15 minutes.
(5) The ECAM control panel can show the unusual BLEED and the pack fault messages.
NOTE: The system operates correctly and it is not necessary to do the related troubleshooting procedure at this step.
(6) Slowly pull the ENGINE-2 thrust lever to the idle position. (7) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 2 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(8) Stop engine 2 (Ref. AMM TASK 71-00-00-710-018).
A. Cleaning of the Odor Smell in the Bleed-Air Ducting System
(a) Set the ENG 2 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Remove the WARNING NOTICE(S) and set the X BLEED selector switch to the OPEN position.
(2) 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 PRV 2 (4000HA2) is the OPEN position.
(c) The BLEED page shows that the X BLEED valve is the OPEN position.
(3) On the ECAM display, make sure that the engine bleed temperature is 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F):
(a) If necessary, slowly push the ENGINE-2 thrust lever to make the engine bleed temperature to 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F). Not reach more than 40% of N1.
(4) Wait for a minimum of 15 minutes.
(5) The ECAM control panel can show the unusual BLEED and the pack fault messages.
(7) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 2 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(8) Stop engine 2 (Ref. AMM TASK 71-00-00-710-028).
5. Close-upWARNING:
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.
(1) In the cockpit, on AIR COND panel 30VU:(a) Set the ENG 2 BLEED pushbutton switch to the pushed position (the OFF legend is off).
(b) Remove the WARNING NOTICE(S) and set the X BLEED selector switch to the OPEN position.
(2) 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 PRV 2 (4000HA2) is the OPEN position.
(c) The BLEED page shows that the X BLEED valve is the OPEN position.
(3) On the ECAM display, make sure that the engine bleed temperature is 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F):
(a) If necessary, slowly push the ENGINE-2 thrust lever to make the engine bleed temperature to 225 -15 deg.C or +10 deg.C (437 -27 deg.F or +18 deg.F). Not reach more than 40% of N1.
(4) Wait for a minimum of 15 minutes.
(5) The ECAM control panel can show the unusual BLEED and the pack fault messages.
NOTE: The system operates correctly and it is not necessary to do the related troubleshooting procedure at this step.
(6) Slowly pull the ENGINE-2 thrust lever to the idle position. (7) In the cockpit, on AIR COND panel 30VU:
(a) Set the ENG 2 BLEED pushbutton switch to the released position (the OFF legend is on).
(b) Set the X BLEED selector switch to the AUTO position.
(8) Stop engine 2 (Ref. AMM TASK 71-00-00-710-028).
Subtask 36-12-00-080-069-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
(2) Remove the 98D36109005001 DUMMY CHECK VLV - APUas follows:
(b) (c) Install the APU bleed check-valve (Ref. AMM TASK 36-12-51-400-001).
(3) Install access panel 197BB (Ref. AMM TASK 53-35-13-400-002).
(4) Remove the 98D36109006000 BLEED EXHAUST - APU as follows:
(c) Connect the bleed-air ducting system to the APU load-compressor valve (Ref. AMM TASK 36-12-41-400-001).
(d) Close the APU doors after access (Ref. AMM TASK 52-41-00-410-001).
(5) Remove the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-000-001).
(6) Install the FAV control thermostat (Ref. AMM TASK 36-11-43-400-001).
Subtask 36-12-00-080-069-B ** ON A/C NOT FOR ALL WARNING:
ALWAYS USE APPLICABLE GLOVES TO TOUCH HOT PARTS. HOT PARTS CAN CAUSE INJURY TO PERSONS.
(1) Make sure that the work area is clean and clear of tools and other items.(2) Remove the 98D36109005001 DUMMY CHECK VLV - APUas follows:
NOTE: After this procedure, the 98D36109005001 DUMMY CHECK VLV - APU will be hot to touch.
(a) Get access to the APU bleed-check-valve position. (b) (c) Install the APU bleed check-valve (Ref. AMM TASK 36-12-51-400-001).
(3) Install access panel 197BB (Ref. AMM TASK 53-35-13-400-002).
(4) Remove the 98D36109006000 BLEED EXHAUST - APU as follows:
NOTE: After this procedure, the 98D36109006000 BLEED EXHAUST - APU will be hot to touch.
(a) (b) Remove the PLUG - BLANKING from the open end of the APU load-compressor valve.(c) Connect the bleed-air ducting system to the APU load-compressor valve (Ref. AMM TASK 36-12-41-400-001).
(d) Close the APU doors after access (Ref. AMM TASK 52-41-00-410-001).
(5) Remove the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-000-001).
(6) Install the FAV control thermostat (Ref. AMM TASK 36-11-43-400-001).
A. Put the aircraft back to its initial configuration.
(2) Remove the 98D36109005001 DUMMY CHECK VLV - APU as follows:
(b) (c) Install the APU bleed check-valve (Ref. AMM TASK 36-12-51-400-001).
(3) Install access panel 197KB (Ref. AMM TASK 53-35-13-400-002).
(4) Remove the 98D36109006000 BLEED EXHAUST - APU as follows:
(c) Connect the bleed-air ducting system to the APU load-compressor valve (Ref. AMM TASK 36-12-41-400-001).
(d) Close the APU doors after access (Ref. AMM TASK 52-41-00-410-001).
(5) Remove the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-000-001).
(6) Install the FAV control thermostat (Ref. AMM TASK 36-11-43-400-001).
Subtask 36-12-00-865-149-A ** ON A/C NOT FOR ALL WARNING:
ALWAYS USE APPLICABLE GLOVES TO TOUCH HOT PARTS. HOT PARTS CAN CAUSE INJURY TO PERSONS.
(1) Make sure that the work area is clean and clear of tools and other items.(2) Remove the 98D36109005001 DUMMY CHECK VLV - APU as follows:
NOTE: After this procedure, the 98D36109005001 DUMMY CHECK VLV - APU will be hot to touch.
(a) Get access to the APU bleed-check-valve position. (b) (c) Install the APU bleed check-valve (Ref. AMM TASK 36-12-51-400-001).
(3) Install access panel 197KB (Ref. AMM TASK 53-35-13-400-002).
(4) Remove the 98D36109006000 BLEED EXHAUST - APU as follows:
NOTE: After this procedure, the 98D36109006000 BLEED EXHAUST - APU will be hot to touch.
(a) (b) Remove the PLUG - BLANKING from the open end of the APU load-compressor valve.(c) Connect the bleed-air ducting system to the APU load-compressor valve (Ref. AMM TASK 36-12-41-400-001).
(d) Close the APU doors after access (Ref. AMM TASK 52-41-00-410-001).
(5) Remove the SBE2272 TCT 230 DEG CELCIUS - BLEED (Ref. AMM TASK 36-11-43-000-001).
(6) Install the FAV control thermostat (Ref. AMM TASK 36-11-43-400-001).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 36-12-00-790-067-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | APU/APU/CTL | 2KD | L42 |
| 121VU | APU/ECB/SPLY | 1KD | L41 |
| 121VU | APU/FIRE/EXTIG/SQUIB/B | 2WF | L39 |
| 121VU | APU/FIRE/EXTIG/SQUIB/A | 1WF | L38 |
| 121VU | APU/FIRE/LP VALVE/NORM | 4WF | M42 |
| 121VU | APU/FIRE/LP VALVE/STBY | 3WF | M41 |
| ** 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. Leak Test
(1) Do a leak test of the bleed-air ducting system (Ref. AMM TASK 36-22-00-790-001):
(a) Make sure that there are no leaks.
Subtask 36-12-00-710-083-A ** ON A/C NOT FOR ALL (1) Do a leak test of the bleed-air ducting system (Ref. AMM TASK 36-22-00-790-001):
(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 36-12-00-860-142-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) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(3) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(5) Remove the WARNING NOTICE(S).
(6)
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(3) On the ECAM control panel, set the UPPER DISPLAY and LOWER DISPLAY potentiometers to OFF.
(4) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(5) Remove the WARNING NOTICE(S).
(6)