W DOC AIRBUS | AMM A320F

Deactivation of the Bleed Valve

TASK 36-11-00-040-803-A
Deactivation of the Bleed Valve

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING: YOU MUST NOT TOUCH HOT PARTS WITHOUT APPLICABLE GLOVES. HOT PARTS CAN CAUSE AN INJURY.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the Job
MMEL 36-11-02A
ENGINE BLEED VALVE (PRV)
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE
No specific
AR
PLACARD
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
No specific
1
WRENCH - HEXAGONAL
No specific
Torque wrench: range to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.357500)
NEVERSEEZ REGULAR GRADE
(Material No.357700)
NEVER-SEEZ PURE NICKEL SPECIAL
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 462AR
 D. Referenced Information
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 36-22-00-790-802-A
Leak Check on all the Bleed Air Ducts and the Packs Components
TASK 71-13-00-010-802-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A
Closing of the Fan Cowl Doors
TASK 78-36-00-010-802-A
Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A
Closing of the Thrust Reverser Cowl-Doors
TASK 31-37-73-00-02
AIDS - ENGINE REPORTS - DESCRIPTION AND OPERATION
F Bleed Valve
3. Job Set-up
Subtask 36-11-00-861-126-A ** ON A/C NOT FOR ALL
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 36-11-00-860-094-A ** ON A/C NOT FOR ALL
B. Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. AMM TASK 31-60-00-860-001).
Subtask 36-11-00-941-129-A ** ON A/C NOT FOR ALL
C. Safety Precautions
   (1) Make sure that the ENG 1(2) shutdown occurred not less than five minutes before you do this procedure.
   (2) On the ENG panel 115VU:
  • Put a WARNING NOTICE(S) to tell persons not to start the ENG 1(2).
   (3) On the MAINTENANCE panel 50VU:
  • Make sure that the ON legend of the ENG/FADEC GND PWR 1(2) pushbutton switch is off.
  • Put a WARNING NOTICE(S) to tell persons not to operate the FADEC SYSTEM.
   (4) On the AIR COND panel 30VU:
  • Make sure that the ENG 1(2) BLEED pushbutton switch is released (the OFF legend is on).
  • Make sure that the APU BLEED pushbutton switch is released (the ON legend is off).
  • Put a WARNING NOTICE(S) to tell persons not to operate the pneumatic system.
   (5) On the HP ground connector:
  • Put a WARNING NOTICE(S) to tell persons not to pressurize the pneumatic system.
Subtask 36-11-00-865-095-A ** ON A/C NOT FOR ALL
D. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUAIR BLEED/APU BLEED VLV CTL/BMC1 OVRD11HVD14
49VUAIR BLEED/X FEED/VALVE/BAT2HVD13
49VUAIR BLEED/ENG 1/CTL2HA1D11
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/X FEED VALVE/NORM1HVZ20
122VUAIR BLEED/APU BLEED VLV CTL/BMC2 OVRD12HVZ19
FOR FIN: 1000EM2 (ENGINE2)
49VUAIR BLEED/APU BLEED VLV CTL/BMC1 OVRD11HVD14
49VUAIR BLEED/X FEED/VALVE/BAT2HVD13
49VUAIR BLEED/ENG 2/MONG3HA2D12
122VUAIR BLEED/ENG 2/CTL2HA2Z22
122VUAIR BLEED/X FEED VALVE/NORM1HVZ20
122VUAIR BLEED/APU BLEED VLV CTL/BMC2 OVRD12HVZ19
Subtask 36-11-00-010-151-A ** ON A/C NOT FOR ALL
E. Get Access
   (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Put the ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position below the engine.
Subtask 36-11-00-010-162-A ** ON A/C NOT FOR ALL
F. Open the right thrust-reverser cowl door (Ref. AMM TASK 78-36-00-010-802):
   (1) FOR [1000EM1] (ENGINE-1)
452AR
   (2) FOR [1000EM2] (ENGINE-2)
462AR
4. Procedure
Subtask 36-11-00-040-098-A ** ON A/C NOT FOR ALL
A. Deactivation of the Bleed Valve (4001HA)
CAUTION: CAREFULLY ALIGN THE LOCKING PIN WITH THE DEACTIVATING HOUSING ON THE VALVE. IF YOU ALIGN IT INCORRECTLY OR IF YOU TIGHTEN IT TOO MUCH, THE LOCKING PIN CAN REMAIN IN POSITION AND YOU CAN CAUSE DAMAGE TO THE LOCKING PIN THREAD.
   (1) On the bleed valve (4001HA):
     (a) Make sure the manual override control is in the CLOSED position:
       1 If necessary, use a WRENCH - HEXAGONAL to set the manual override control to the CLOSED position.
     (b) Use a WRENCH - HEXAGONAL to remove the locking pin from its storage port.
     (c) Install the locking pin as follows:
CAUTION: BEFORE YOU INSTALL THE LOCKING PIN OR SAFETY SCREW OR SPECIAL SCREW OR KNURLED SCREW, YOU MUST APPLY NEVER-SEEZ REGULAR GRADE. IF YOU DO NOT APPLY IT, YOU CAN CAUSE DAMAGE TO THE MANUAL OVERRIDE CONTROL OF THE VALVE.
       1 Apply NEVERSEEZ REGULAR GRADE (Material No.357500) or NEVER-SEEZ PURE NICKEL SPECIAL (Material No.357700) on the locking pin.
       2 On the manual override control:
         a Lock the override control with the locking pin.
       3 TORQUE the locking pin to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in ) T.
   (2) On the cockpit:
     (a) Put a PLACARD in the cockpit to tell the crew that the left (right) PRV is closed and deactivated.
Subtask 36-11-00-790-067-A ** ON A/C NOT FOR ALL
B. Check of the Bleed Air Ducts
   (1) Get the post flight report (Ref. AMM D/O 31-37-73-00).
     (a) If the class 1 fault message PRESS REG-V 4001HA1(2) and the ECAM warning AIR ENG 1(2) BLEED FAULT come into view during the flight phases 3, 4 or 5, get the ENG TAKE OFF REPORT on the MCDU and do a check of the pack values:
       1 If the pack value is 00 or 01 (the pack was off during the last take off):
         a Do the leak check of all the bleed air ducts and the pack components (Ref. AMM TASK 36-22-00-790-802).
         b Do a visual inspection of the bleed air ducts and the equipment which are installed downstream of the Overpressure Valve (OPV) (along the pylon, wing and the center fuselage to the starter valves, flow control valves, wing anti-ice valves, HP ground connectors and the APU check valve but not the wing anti-ice ducting). Make sure that there is no deformation and be very careful when you do the check of the bellows.
  • If there is damage or deformation, repair or replace the damaged duct or equipment.
5. Close-up
Subtask 36-11-00-410-143-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the thrust-reverser cowl door (Ref. AMM TASK 78-36-00-410-802):
     (a) FOR [1000EM1] (ENGINE-1)
452AR
     (b) FOR [1000EM2] (ENGINE-2)
462AR
Subtask 36-11-00-410-144-A ** ON A/C NOT FOR ALL
B. Close Access
   (1) Remove the access platform(s).
   (2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (3) Remove the WARNING NOTICE(S).
Subtask 36-11-00-865-096-A ** ON A/C NOT FOR ALL
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUAIR BLEED/APU BLEED VLV CTL/BMC1 OVRD11HVD14
49VUAIR BLEED/X FEED/VALVE/BAT2HVD13
49VUAIR BLEED/ENG 1/CTL2HA1D11
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/X FEED VALVE/NORM1HVZ20
122VUAIR BLEED/APU BLEED VLV CTL/BMC2 OVRD12HVZ19
FOR FIN: 1000EM2 (ENGINE2)
49VUAIR BLEED/APU BLEED VLV CTL/BMC1 OVRD11HVD14
49VUAIR BLEED/X FEED/VALVE/BAT2HVD13
49VUAIR BLEED/ENG 2/MONG3HA2D12
122VUAIR BLEED/ENG 2/CTL2HA2Z22
122VUAIR BLEED/X FEED VALVE/NORM1HVZ20
122VUAIR BLEED/APU BLEED VLV CTL/BMC2 OVRD12HVZ19
Subtask 36-11-00-040-106-A ** ON A/C NOT FOR ALL
D. Deactivation of the Bleed Valve
   (1) On the ECAM control panel, push the BLEED key (on the lower ECAM DU, the BLEED page comes into view).
     (a) On the lower ECAM DU, on the BLEED page:
  • Make sure that the related bleed-valve symbol shows closed in green.
Subtask 36-11-00-860-095-A ** ON A/C NOT FOR ALL
E. Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
Subtask 36-11-00-869-118-A ** ON A/C NOT FOR ALL
F. Make an entry in the logbook.
Subtask 36-11-00-862-112-A ** ON A/C NOT FOR ALL
G. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 01:06:28 UTC
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