Installation of the Anti-Ice Valve Filter

TASK 30-11-51-400-002-A
Installation of the Anti-Ice Valve Filter

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 USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

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	PLUG - BLANKING
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 60 and 40 lbf.in (0.68 and 0.45 m.daN )
No specific	Torque wrench: range to between 95 and 90 lbf.in (1.07 and 1.02 m.daN )
98D27803000000	2	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
522YB, 622YB
FOR [10DL] (VALVE-WING ANTI ICE CONTROL, R)
622AB
622YB
FOR [9DL] (VALVE-WING ANTI ICE CONTROL, L)
522YB
522AB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
3	O-RING	AIPC 30-11-51-02-110
5	O-RING	AIPC 30-11-51-02-190
11	PACKING	AIPC 30-11-51-02-260
10	PACKING	AIPC 30-11-51-02-270

E. Referenced Information

REFERENCE	DESIGNATION
TASK 57-41-37-000-004-A	Removal of the Pressure Relief Panels
TASK 57-41-37-400-002-A	Installation of the Pressure Relief Panels
Anti-Ice Valve Filter (SAS911-002A and SAS912-002A) ** ON A/C NOT FOR ALL
Anti-Ice Valve Filter (38E93-X) ** ON A/C NOT FOR ALL
Anti-Ice Valve Filter (SAS911-002A and SAS912-002A) ** ON A/C NOT FOR ALL
Anti-Ice Valve Filter (38E93-X) ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 30-11-51-941-056-A

A. Safety Precautions
(1) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the flap and slat control lever.

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.

(2) Make sure that the WARNING NOTICE(S) are 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) Make sure that the SAFETY BARRIER(S) are in position.

Subtask 30-11-51-860-050-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position below zone 522(622).
(2) Make sure that applicable access panels 522AB(622AB) are removed (Ref. AMM TASK 57-41-37-000-004).

Subtask 30-11-51-860-050-B ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position below zone 522(622).
(2) Make sure that applicable access panels 522YB ( 622YB) are removed (Ref. AMM TASK 57-41-37-000-004).

Subtask 30-11-51-865-055-A

C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

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	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 ALL
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21

4. Procedure
Subtask 30-11-51-420-052-A

A. Preparation for Installation
(1) Clean the component interface and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.

Subtask 30-11-51-420-051-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.

B. Installation of the Anti-Ice Valve Filter (for the Part Numbers (PN) SAS911-002A and SAS912-002A)

NOTE: The anti-ice control valve with the PN SAS912-002A is not approved for the Extended Range Operations for Two-Engine Aeroplanes (ETOPS).

(1) Remove the CAP - BLANKING from the anti-ice control valve.
(2) Install the new AIPC 30-11-51-02-190 O-RING (5) on the filter (4).
(3) Install the filter (4) in the anti-ice control valve.
(4) Install the new AIPC 30-11-51-02-110 O-RING (3) on the cap (2).
(5) Install the caps (2) and (1).

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(6) Safety the caps (1) and (2) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.

Subtask 30-11-51-420-055-A

C. Installation of the Anti-ice Valve Filter (for part number 38E93-X)
(1) Remove the PLUG - BLANKING from the anti-ice control valve.
(2) Install the new AIPC 30-11-51-02-270 PACKING (10) and the new AIPC 30-11-51-02-260 PACKING (11) on the filter (12).
(3) Install the filter (12) on the anti-ice control valve.
(4) TORQUE the filter (12) to between 95 and 90 lbf.in (1.07 and 1.02 m.daN )

(5) Safety the filter (12) to the anti-ice control valve with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(6) Install the cap (13) on the filter (12).
(7) TORQUE the cap (13) to between 60 and 40 lbf.in (0.68 and 0.45 m.daN )

5. Close-up
Subtask 30-11-51-410-051-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) Install the access panels (Ref. AMM TASK 57-41-37-400-002):
(a) FOR [9DL] (VALVE-WING ANTI ICE CONTROL, L)
Install access panel 522AB.
(b) FOR [10DL] (VALVE-WING ANTI ICE CONTROL, R)
Install access panel 622AB.

Subtask 30-11-51-410-051-B ** 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) Install the access panels (Ref. AMM TASK 57-41-37-400-002):
(a) FOR [9DL] (VALVE-WING ANTI ICE CONTROL, L)
Install access panel 522YB.
(b) FOR [10DL] (VALVE-WING ANTI ICE CONTROL, R)
Install access panel 622YB.

Subtask 30-11-51-865-054-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

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	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 ALL
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21

Subtask 30-11-51-942-051-A

C. Removal of Equipment
(1) Remove the SAFETY BARRIERS.
(2) Remove the WARNING NOTICE(S).
(3) Remove the access platform(s).
(4) On panel 114VU, remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap and slat control lever.
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 00:28:31 UTC