W DOC AIRBUS | AMM A320F

Decontamination of the Bleed-Air Ducting System Disconnected at APU Load-Compressor Valve with Engine 1 Bleed Pressure

TASK 36-12-00-615-802-A
Decontamination of the Bleed-Air Ducting System Disconnected at APU Load-Compressor Valve 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: 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).
ZONE: 197
ZONE: 211
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
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
2
CHOCK-MLG,ENGINE RUN-UP
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
197
REAR FAIRING
211
COCKPIT
197BB
197KB
 C. Referenced Information
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 36-12-41-000-001-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
F Tool Installation
F APU Bleed Exhaust - Installation
F Dummy Check Valve - Installation
F Bleed-Air Ducting System - Location and Detail
F BLEED Page
3. Job Set-up
Subtask 36-12-00-941-059-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)
F Tool Installation ** ON A/C NOT FOR ALL
Subtask 36-12-00-941-059-B ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) Obey the safety precautions during the engine ground operations (Ref. AMM TASK 71-00-00-860-012).
   (2)
F Tool Installation ** ON A/C NOT FOR ALL
Subtask 36-12-00-941-059-D ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) Obey the safety precautions during the engine ground operations (Ref. AMM TASK 71-00-00-869-004).
   (2)
F Tool Installation ** ON A/C NOT FOR ALL
Subtask 36-12-00-865-136-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR BLEED/X FEED/VALVE/BAT2HVD13
49VUAIR BLEED/ENG 1/CTL3HA1D12
49VUAIR BLEED/ENG 1/MONG2HA1D11
122VUAIR BLEED/X FEED VALVE/NORM1HVZ20
Subtask 36-12-00-865-120-A ** ON A/C NOT FOR ALL
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR COND/TEMP CTL/SYS 1 CHAN B/28VDC52HHD08
** ON A/C NOT FOR ALL
121VUAPU/APU/CTL2KDL42
121VUAPU/ECB/SPLY1KDL41
121VUAPU/FIRE/EXTIG/SQUIB/B2WFL39
121VUAPU/FIRE/EXTIG/SQUIB/A1WFL38
121VUAPU/FIRE/LP VALVE/NORM4WFM42
121VUAPU/FIRE/LP VALVE/STBY3WFM41
** ON A/C NOT FOR ALL
122VUAIR COND/TEMP CTL SYS 1/CHAN A/115VAC49HHX22
122VUAIR COND/TEMP CTL SYS 1/CHAN A/28VDC51HHX21
122VUAIR COND/TEMP CTL SYS 1/CHAN B/115VAC50HHY18
Subtask 36-12-00-860-107-A ** ON A/C NOT FOR ALL
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 pushbuttons switches.
   (4) In the cockpit, on OVERHEAD CTL & IND panel 25VU:
     (a) Put the WARNING NOTICE(S) in position to tell persons not to start the APU.
Subtask 36-12-00-480-052-A ** ON A/C NOT FOR ALL
E. Preparation for Cleaning of the Bleed-Air Ducting System
   (1) 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)
F APU Bleed Exhaust - Installation ** ON A/C NOT FOR ALL
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.
   (2) 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)
F Dummy Check Valve - Installation ** ON A/C NOT FOR ALL
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.
   (3) Start engine 1 with the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) and keep the engines RPM to idle (Ref. AMM TASK 71-00-00-710-003):
     (a) In the cockpit, on AIR COND panel 30VU:
       1 Make sure that the ENG 1 BLEED pushbutton switch is released (the OFF legend is on).
   (4) On the BLEED page, make sure that Pressure Regulating Valve 1 (PRV 1) (4000HA1) is closed.
   (5) 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).
   (6) Get access to the 98D36109005001 DUMMY CHECK VLV - APU and set it to OPEN position.
Subtask 36-12-00-480-052-D ** ON A/C NOT FOR ALL
E. Preparation for Cleaning of the Bleed-Air Ducting System
   (1) 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)
F APU Bleed Exhaust - Installation ** ON A/C NOT FOR ALL
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.
   (2) 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)
F Dummy Check Valve - Installation ** ON A/C NOT FOR ALL
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.
   (3) Start engine 1 with the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) and keep the engines RPM to idle (Ref. AMM TASK 71-00-00-710-003):
     (a) In the cockpit, on AIR COND panel 30VU:
       1 Make sure that the ENG 1 BLEED pushbutton switch is released (the OFF legend is on).
   (4) On the BLEED page, make sure that Pressure Regulating Valve 1 (PRV 1) (4000HA1) is closed.
   (5) 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).
   (6) Get access to the 98D36109005001 DUMMY CHECK VLV - APU and set it to OPEN position.
Subtask 36-12-00-480-052-E ** ON A/C NOT FOR ALL
E. Preparation for Cleaning of the Bleed-Air Ducting System
   (1) 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)
F APU Bleed Exhaust - Installation ** ON A/C NOT FOR ALL
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.
   (2) 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)
F Dummy Check Valve - Installation ** ON A/C NOT FOR ALL
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.
   (3) Start engine 1 with the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) and keep the engines RPM to idle (Ref. AMM TASK 71-00-00-710-043):
     (a) In the cockpit, on AIR COND panel 30VU:
       1 Make sure that the ENG 1 BLEED pushbutton switch is released (the OFF legend is on).
   (4) On the BLEED page, make sure that Pressure Regulating Valve 1 (PRV 1) (4000HA1) is closed.
   (5) 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).
   (6) Get access to the 98D36109005001 DUMMY CHECK VLV - APU and set it to OPEN position.
Subtask 36-12-00-480-052-F ** ON A/C NOT FOR ALL
E. Preparation for Cleaning of the Bleed-Air Ducting System
   (1) 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)
F APU Bleed Exhaust - Installation ** ON A/C NOT FOR ALL
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.
   (2) 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)
F Dummy Check Valve - Installation ** ON A/C NOT FOR ALL
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.
   (3) Start engine 1 with the GROUND AIR-SUPPLY UNIT(HIGH PRESSURE) and keep the engines RPM to idle (Ref. AMM TASK 71-00-00-710-003):
     (a) In the cockpit, on AIR COND panel 30VU:
       1 Make sure that the ENG 1 BLEED pushbutton switch is released (the OFF legend is on).
   (4) On the BLEED page, make sure that Pressure Regulating Valve 1 (PRV 1) (4000HA1) is closed.
   (5) 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).
   (6) Get access to the 98D36109005001 DUMMY CHECK VLV - APU and set it to OPEN position.
4. Procedure
Subtask 36-12-00-615-051-A ** ON A/C NOT FOR ALL
A. Cleaning of the Odor Smell in the Bleed-Air Ducting System
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 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
   (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 engine 1 bleed valve is OPEN.
   (3) On the ECAM display, make sure that the engine bleed temperature is 200 -10 DEG.C or +10 DEG.C (392 -18 DEG.F or +18 DEG.F):
     (a) If necessary, slowly push the ENGINE-1 thrust lever to make the engine bleed temperature to 200 -10 DEG.C or +10 DEG.C (392 -18 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 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-1 thrust lever to the idle position.
   (7) 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).
   (8) Stop engine 1 (Ref. AMM TASK 71-00-00-710-028).
Subtask 36-12-00-615-051-B ** ON A/C NOT FOR ALL
A. Cleaning of the Odor Smell in the Bleed-Air Ducting System
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 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
   (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 engine 1 bleed valve is OPEN.
   (3) On the ECAM display, make sure that the engine bleed temperature is 200 -10 DEG.C or +10 DEG.C (392 -18 DEG.F or +18 DEG.F):
     (a) If necessary, slowly push the ENGINE-1 thrust lever to make the engine bleed temperature to 200 -10 DEG.C or +10 DEG.C (392 -18 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 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-1 thrust lever to the idle position.
   (7) 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).
   (8) Stop engine 1 (Ref. AMM TASK 71-00-00-710-018).
Subtask 36-12-00-615-051-D ** ON A/C NOT FOR ALL
A. Cleaning of the Odor Smell in the Bleed-Air Ducting System
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 1 BLEED pushbutton switch to the pushed position (the OFF legend is off).
   (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 engine 1 bleed valve is OPEN.
   (3) On the ECAM display, make sure that the engine bleed temperature is 200 -10 DEG.C or +10 DEG.C (392 -18 DEG.F or +18 DEG.F):
     (a) If necessary, slowly push the ENGINE-1 thrust lever to make the engine bleed temperature to 200 -10 DEG.C or +10 DEG.C (392 -18 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 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-1 thrust lever to the idle position.
   (7) 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).
   (8) Stop engine 1 (Ref. AMM TASK 71-00-00-710-028).
5. Close-up
Subtask 36-12-00-080-052-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
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)
F Dummy Check Valve - Installation ** ON A/C NOT FOR ALL
     (c) Install the APU bleed check-valve (Ref. AMM TASK 36-12-51-400-001).
     (d) Install access panel 197BB (Ref. AMM TASK 53-35-13-400-002).
   (3) Remove the 98D36109006000 BLEED EXHAUST - APU as follows:
NOTE: After this procedure, the 98D36109006000 BLEED EXHAUST - APU will be hot to touch.
     (a)
F APU Bleed Exhaust - Installation ** ON A/C NOT FOR ALL
     (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).
Subtask 36-12-00-080-052-B ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
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)
F Dummy Check Valve - Installation ** ON A/C NOT FOR ALL
     (c) Install the APU bleed check-valve (Ref. AMM TASK 36-12-51-400-001).
     (d) Install access panel 197KB (Ref. AMM TASK 53-35-13-400-002).
   (3) Remove the 98D36109006000 BLEED EXHAUST - APU as follows:
NOTE: After this procedure, the 98D36109006000 BLEED EXHAUST - APU will be hot to touch.
     (a)
F APU Bleed Exhaust - Installation ** ON A/C NOT FOR ALL
     (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).
Subtask 36-12-00-865-121-A ** ON A/C NOT FOR ALL
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR COND/TEMP CTL/SYS 1 CHAN B/28VDC52HHD08
** ON A/C NOT FOR ALL
121VUAPU/APU/CTL2KDL42
121VUAPU/ECB/SPLY1KDL41
121VUAPU/FIRE/EXTIG/SQUIB/B2WFL39
121VUAPU/FIRE/EXTIG/SQUIB/A1WFL38
121VUAPU/FIRE/LP VALVE/NORM4WFM42
121VUAPU/FIRE/LP VALVE/STBY3WFM41
** ON A/C NOT FOR ALL
122VUAIR COND/TEMP CTL SYS 1/CHAN A/115VAC49HHX22
122VUAIR COND/TEMP CTL SYS 1/CHAN A/28VDC51HHX21
122VUAIR COND/TEMP CTL SYS 1/CHAN B/115VAC50HHY18
Subtask 36-12-00-710-086-A ** ON A/C NOT FOR ALL
C. Operational Test
   (1) Do an operational test of the flow control and indicating system (Ref. AMM TASK 21-51-00-710-002).
Subtask 36-12-00-790-061-A ** ON A/C NOT FOR ALL
D. 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 36-12-00-860-108-A ** ON A/C NOT FOR ALL
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)
F Tool Installation ** ON A/C NOT FOR ALL
[Rev.10 from 2021] 2026.04.01 01:14:27 UTC
"Aviabrain" 2025