DOC AIRBUS | AMM A320FInspection of the Wing Anti-Ice (WAI) valve(s) and the WAI ducts
TASK 30-11-00-200-802-A
Inspection of the Wing Anti-Ice (WAI) valve(s) and the WAI ducts
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 30-11-00-941-074-A
Subtask 30-11-00-290-052-A
Subtask 30-11-00-410-064-A
[Rev.10 from 2021]
2026.04.01 00:28:21 UTC
Inspection of the Wing Anti-Ice (WAI) valve(s) and the WAI ducts
WARNING:
MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.
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.
WARNING:
MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING:
MAKE SURE THAT THE GROUND SAFETY LOCKS ARE CORRECTLY INSTALLED ON THE MLG AND NLG. MOVEMENTS OF THE LANDING GEARS CAN CAUSE INJURY TO PERSONS AND CAUSE DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
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.
WARNING:
BEFORE YOU START WORK, YOU MUST PUT ON A SAFETY HARNESS AND ATTACH IT TO THE ACCESS PLATFORM. WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.
WARNING:
MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | 1 | BORESCOPE - FLEXIBLE |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| No specific | 1 | WRENCH - PNEUMATIC |
| 98D27504030001 | 1 | LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT |
| 98D27803000000 | 1 | LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION |
| 98D27804001000 | 1 | ADAPTOR-DRIVE, SLAT (AND FLAP) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 510 | LEFT WING SLATS |
| 610 | RIGHT WING SLATS |
| 522NB, 622NB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-50-00-000-003-A | Removal of the Lock-Torque Shaft - Flaps and Slats (98D27504030001) |
| TASK 27-50-00-400-003-A | Installation of the Lock-Torque Shaft - Flaps and Slats (98D27504030001) |
| TASK 27-80-00-866-005-A | Retracting the Slats on the Ground |
| TASK 27-84-00-710-001-A | Operational Test of the Slat System |
| TASK 27-84-45-000-004-A | Removal of the Torque Shafts 6010CM and 6060CM |
| TASK 27-84-45-400-005-A | Installation of the Torque Shafts 6010CM and 6060CM |
| TASK 30-11-41-000-001-A | Removal of the Telescopic Duct |
| TASK 30-11-41-400-001-A | Installation of the Telescopic Duct |
| TASK 30-11-51-000-001-A | Removal of the Wing Anti-Ice Control-Valve |
| TASK 30-11-51-400-001-A | Installation of the Wing Anti-Ice Control-Valve |
| TASK 57-41-37-000-006-A | Removal of the Access Panels |
| TASK 57-41-37-400-006-A | Installation of the Access Panels |
Wing Anti-Ice Control Valve (38E93-X)-Component LocationSubtask 30-11-00-941-074-A
A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(3) On the flap and slat control lever, on panel 114VU, install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION.
(4) Put the WARNING NOTICE(S) in positions that follow, before you start the work on the ice protection system:
Subtask 30-11-00-865-074-A (1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
WARNING:
MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(2) Make sure that the slats are fully retracted (Ref. AMM TASK 27-80-00-866-005). (3) On the flap and slat control lever, on panel 114VU, install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION.
(4) 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 the APU control switches
- On panel 30VU, to tell persons not to pressurize the bleed-air system
- On panel 114VU, to tell persons not to operate the slat controls.
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 30-11-00-010-067-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C ALL | |||
| 49VU | ENGINE/2/FADEC A/AND EIU 2 | 2KS2 | A05 |
| 49VU | ENGINE/1/FADEC A/AND EIU 1 | 2KS1 | A04 |
| 49VU | ANTI ICE/WING/CTL | 2DL | C02 |
| 49VU | ANTI ICE/WING/MONG | 1DL | C01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG2/FADEC B | 4KS2 | Q40 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG1/FADEC B/AND EIU 1 | 4KS1 | R41 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/WTB/SLT/SYS2 | 11CV | P19 |
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG2/FADEC B/AND EIU2 | 4KS2 | Q40 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG2/FADEC B/AND EIU2 | 4KS2 | R41 |
| 121VU | ENGINE/ENG1/FADEC B/AND EIU 1 | 4KS1 | R40 |
| ** ON A/C ALL | |||
| 122VU | FLIGHT CONTROLS/WTB/SLT/SYS1 | 9CV | S06 |
C. Get Access
(1) Put an ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the applicable area.
(2) Remove the WAI control valve(s) [9DL] [10DL] (Ref. AMM TASK 30-11-51-000-001).
(3) Remove the applicable access panel(s) (Ref. AMM TASK 57-41-37-000-006):
(a) For the left wing, remove access panel 522NB.
(b) For the right wing, remove access panel 622NB.
(4) Remove the applicable torque shaft (Ref. AMM TASK 27-84-45-000-004):
(a) For the left wing, remove [6010CM]
(b) For the right wing, remove [6060CM]
(5) Extend the slats:
(b) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT, installed outboard of the removed torque shaft FIN 6010CM (6060CM) (Ref. AMM TASK 27-50-00-000-003).
(c) Manually extend the slats to the fully extended position.
(d) Install the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT outboard of the removed torque shaft FIN 6010CM (6060CM) (Ref. AMM TASK 27-50-00-400-003).
(6) Remove the applicable telescopic duct (Ref. AMM TASK 30-11-41-000-001).
(7) At the interface of slats no. 3 and 4 and slats no. 4 and 5:
(a) Loosen the clamps (1) and then remove the flexible duct(s) (2) and the clamps (1).
4. Procedure(1) Put an ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the applicable area.
(2) Remove the WAI control valve(s) [9DL] [10DL] (Ref. AMM TASK 30-11-51-000-001).
(3) Remove the applicable access panel(s) (Ref. AMM TASK 57-41-37-000-006):
(a) For the left wing, remove access panel 522NB.
(b) For the right wing, remove access panel 622NB.
(4) Remove the applicable torque shaft (Ref. AMM TASK 27-84-45-000-004):
(a) For the left wing, remove [6010CM]
(b) For the right wing, remove [6060CM]
(5) Extend the slats:
WARNING:
MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(a) Install the 98D27804001000 ADAPTOR-DRIVE, SLAT (AND FLAP) and a WRENCH - PNEUMATIC on the applicable bevel gearbox: (b) Remove the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT, installed outboard of the removed torque shaft FIN 6010CM (6060CM) (Ref. AMM TASK 27-50-00-000-003).
(c) Manually extend the slats to the fully extended position.
(d) Install the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT outboard of the removed torque shaft FIN 6010CM (6060CM) (Ref. AMM TASK 27-50-00-400-003).
(6) Remove the applicable telescopic duct (Ref. AMM TASK 30-11-41-000-001).
(7) At the interface of slats no. 3 and 4 and slats no. 4 and 5:
(a) Loosen the clamps (1) and then remove the flexible duct(s) (2) and the clamps (1).
Subtask 30-11-00-290-052-A
A. Inspection of the WAI control valve(s) and WAI ducts:
(1) Do the inspection of the WAI control valve(s) 9DL (10DL):
(a) Do a visual inspection of the WAI control valve(s) 9DL (10DL).
(b) Make sure that there is no damage or unwanted particles in the WAI control valve(s) 9DL (10DL).
(2) Do the inspection of the WAI duct from RIB 08 to RIB 13:
(a) Put the BORESCOPE - FLEXIBLE through the opening of the WAI duct.
(b) Make sure that there is no damage or unwanted particles in the inner side of the WAI duct.
(3) Do the inspection of the telescopic duct:
(a) Put the BORESCOPE - FLEXIBLE through the opening of the telescopic duct.
(b) Make sure that there is no damage or unwanted particles in the inner side of the telescopic duct.
(4) Do the inspection of the piccolo ducts on the slats no. 3, 4 and 5:
(a) Put the BORESCOPE - FLEXIBLE through the opening of the piccolo duct(s).
(b) Make sure that there is no damage or unwanted particles in the inner side of the piccolo duct(s).
(5) Do the inspection of the flexible duct(s):
(a) Do the visual inspection of the flexible duct(s).
(b) Make sure that there is no damage or unwanted particles in the inner side of the flexible duct(s).
5. Close-up(1) Do the inspection of the WAI control valve(s) 9DL (10DL):
(a) Do a visual inspection of the WAI control valve(s) 9DL (10DL).
(b) Make sure that there is no damage or unwanted particles in the WAI control valve(s) 9DL (10DL).
(2) Do the inspection of the WAI duct from RIB 08 to RIB 13:
(a) Put the BORESCOPE - FLEXIBLE through the opening of the WAI duct.
(b) Make sure that there is no damage or unwanted particles in the inner side of the WAI duct.
(3) Do the inspection of the telescopic duct:
(a) Put the BORESCOPE - FLEXIBLE through the opening of the telescopic duct.
(b) Make sure that there is no damage or unwanted particles in the inner side of the telescopic duct.
(4) Do the inspection of the piccolo ducts on the slats no. 3, 4 and 5:
(a) Put the BORESCOPE - FLEXIBLE through the opening of the piccolo duct(s).
(b) Make sure that there is no damage or unwanted particles in the inner side of the piccolo duct(s).
(5) Do the inspection of the flexible duct(s):
(a) Do the visual inspection of the flexible duct(s).
(b) Make sure that there is no damage or unwanted particles in the inner side of the flexible duct(s).
Subtask 30-11-00-410-064-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) At the interface of slats no. 3 and 4 and slats no. 4 and 5:
(a) Install the flexible duct(s) (2) with the clamps (1).
(b) Tighten the clamps (1).
(3) Install the applicable telescopic duct (Ref. AMM TASK 30-11-41-400-001).
(4) Remove the 98D27804001000 ADAPTOR-DRIVE, SLAT (AND FLAP) and WRENCH - PNEUMATIC from the slat drive shaft.
(5) Install the applicable torque shaft (Ref. AMM TASK 27-84-45-400-005):
(a) For the left wing, install [6010CM]
(b) For the right wing, install [6060CM]
(6) Install the applicable access panel(s) (Ref. AMM TASK 57-41-37-400-006):
(a) For the left wing, install access panel 522NB.
(b) For the right wing, install access panel 622NB.
(7) Install the WAI control valve(s) 9DL (10DL) (Ref. AMM TASK 30-11-51-400-001).
(8) Remove the access platform(s).
Subtask 30-11-00-865-077-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) At the interface of slats no. 3 and 4 and slats no. 4 and 5:
(a) Install the flexible duct(s) (2) with the clamps (1).
(b) Tighten the clamps (1).
(3) Install the applicable telescopic duct (Ref. AMM TASK 30-11-41-400-001).
(4) Remove the 98D27804001000 ADAPTOR-DRIVE, SLAT (AND FLAP) and WRENCH - PNEUMATIC from the slat drive shaft.
(5) Install the applicable torque shaft (Ref. AMM TASK 27-84-45-400-005):
(a) For the left wing, install [6010CM]
(b) For the right wing, install [6060CM]
(6) Install the applicable access panel(s) (Ref. AMM TASK 57-41-37-400-006):
(a) For the left wing, install access panel 522NB.
(b) For the right wing, install access panel 622NB.
(7) Install the WAI control valve(s) 9DL (10DL) (Ref. AMM TASK 30-11-51-400-001).
(8) Remove the access platform(s).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 30-11-00-710-053-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C ALL | |||
| 49VU | ENGINE/2/FADEC A/AND EIU 2 | 2KS2 | A05 |
| 49VU | ENGINE/1/FADEC A/AND EIU 1 | 2KS1 | A04 |
| 49VU | ANTI ICE/WING/CTL | 2DL | C02 |
| 49VU | ANTI ICE/WING/MONG | 1DL | C01 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG2/FADEC B | 4KS2 | Q40 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG1/FADEC B/AND EIU 1 | 4KS1 | R41 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/WTB/SLT/SYS2 | 11CV | P19 |
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG2/FADEC B/AND EIU2 | 4KS2 | Q40 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG2/FADEC B/AND EIU2 | 4KS2 | R41 |
| 121VU | ENGINE/ENG1/FADEC B/AND EIU 1 | 4KS1 | R40 |
| ** ON A/C ALL | |||
| 122VU | FLIGHT CONTROLS/WTB/SLT/SYS1 | 9CV | S06 |
C. Operational Test
(1) Do the operational test of the slat system (Ref. AMM TASK 27-84-00-710-001).
Subtask 30-11-00-942-072-A (1) Do the operational test of the slat system (Ref. AMM TASK 27-84-00-710-001).
D. Close-up
(1) Remove the SAFETY BARRIERS.
(2) On panel 114VU, remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap and slat control lever.
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Remove the SAFETY BARRIERS.
(2) On panel 114VU, remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap and slat control lever.
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.