W DOC AIRBUS | AMM A320F

Removal of the Wing Anti-Ice Control-Valve

TASK 30-11-51-000-001-A
Removal of the Wing Anti-Ice Control-Valve

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.
FIN: 10DL
FIN: 9DL
1. Reason for the Job
NOTE: The wing anti-ice control-valve is an interchangeable part.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 3M (10 FT)
No specific
AR
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
AR
CAP - BLANKING
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
98D27803000000
1
LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [10DL] (VALVE-WING ANTI ICE CONTROL, R)
622AB
622YB
FOR [9DL] (VALVE-WING ANTI ICE CONTROL, L)
522YB
522AB
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 57-41-37-000-004-A
Removal of the Pressure Relief Panels
F Wing Anti-Ice Control-Valve (SAS911-002A and SAS912-002A) location and Detail ** ON A/C NOT FOR ALL
F Wing Anti-Ice Control Valve (38E93-X) - Location and Detail ** ON A/C NOT FOR ALL
F Wing Anti-Ice Control-Valve (SAS911-002A and SAS912-002A) - Location and Detail ** ON A/C NOT FOR ALL
F Wing Anti-Ice Control Valve (38E93-X) - Location and Detail ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 30-11-51-941-051-A
A. Safety Precautions
   (1) On the flap and slat control lever, on panel 114VU, install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION.
WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
   (2) Put the WARNING NOTICE(S) in positions that follow before you start the work on the ice protection system:
  • On the high-pressure ground-power connections, to tell persons not to pressurize the pneumatic system
  • In the cockpit, to tell persons not to operate the engines or APU control switch
  • On the panel 30VU, to tell persons not to pressurize the bleed air system
  • On the panel 114VU, to tell persons not to operate the slat controls.
   (3) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
Subtask 30-11-51-865-050-A
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C ALL
49VUANTI ICE/WING/CTL2DLC02
49VUANTI ICE/WING/MONG1DLC01
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
Subtask 30-11-51-010-050-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put an ACCESS PLATFORM 3M (10 FT) in position below zone 522(622).
   (2) Remove the access panels (Ref. AMM TASK 57-41-37-000-004):
     (a) FOR [9DL] (VALVE-WING ANTI ICE CONTROL, L)
Remove access panel 522AB
     (b) FOR [10DL] (VALVE-WING ANTI ICE CONTROL, R)
Remove access panel 622AB.
Subtask 30-11-51-010-050-B ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below zone 522(622).
   (2) Remove the access panels (Ref. AMM TASK 57-41-37-000-004):
     (a) FOR [9DL] (VALVE-WING ANTI ICE CONTROL, L)
Remove access panel 522YB.
     (b) FOR [10DL] (VALVE-WING ANTI ICE CONTROL, R)
Remove access panel 622YB.
4. Procedure
Subtask 30-11-51-020-050-A
WARNING: DO NOT TOUCH THE ANTI-ICE DUCTS UNTIL THEY ARE COOL. THE TEMPERATURE OF THE DUCTS STAYS HIGH FOR SOME TIME AFTER THE ENGINE STOPS.
A. Removal of the Wing Anti-Ice Control-Valve (for the Part Numbers (PN) SAS911-002A and SAS912-002A)
NOTE: The wing anti-ice control-valve with the PN SAS912-002A is not approved for the Extended Range Operations for Two-Engine Aeroplanes (ETOPS).
   (1) Disconnect the electrical connectors as follows:
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
CAUTION: TO PREVENT POSSIBLE CROSS-CONNECTION OF THE ELECTRICAL CONNECTORS, MAKE SURE THAT PLUGS AND RECEPTACLES ARE CLEARLY IDENTIFIED.
     (a) Disconnect the electrical connectors (8), (9) and (10).
     (b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
   (2) Remove the clamp (3) from the wing anti-ice control-valve (2) and move the duct (4) outboard.
   (3) Hold the wing anti-ice control-valve (2) and remove the clamp (1).
   (4) Move the wing anti-ice control-valve (2) outboard to disconnect the locating pin (6) and lower the wing anti-ice control-valve (2) from its location.
   (5) Put the CAP - BLANKING on the open ends of the anti-ice ducts (4) and (11) and the wing anti-ice contol-valve (2).
Subtask 30-11-51-020-053-A
B. Removal of the Wing Anti-Ice Control Valve (for part number 38E93-X)
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
   (1) Disconnect the electrical connectors (14), (15) and (16).
   (2) Remove the clamp (12) and move the duct (13) away from the anti-ice control valve (11).
   (3) Hold the anti-ice control valve (11) and remove the clamp (10).
   (4) Move the anti-ice control valve (11) away from the duct (17) to disconnect the location pin (19). Remove the anti-ice control valve (11).
   (5) Put CAP - BLANKING on the:
  • Open ends of the anti-ice ducts (13) and (17)
  • Electrical connectors (14), (15) and (16)
  • Electrical connectors and the openings on the anti-ice control valve (11).
[Rev.10 from 2021] 2026.04.01 00:28:28 UTC
"Aviabrain" 2025