Installation of the Windshield

TASK 56-11-11-400-001-A
Installation of the Windshield

WARNING: YOU MUST MAKE SURE THAT YOU CAN HOLD THE COMPONENT BEFORE YOU REMOVE/INSTALL IT. THE COMPONENT IS HEAVY. IF IT FALLS, IT CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

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.

CAUTION: DO NOT USE SHARP AND/OR METALLIC TOOLS OR OBJECTS TO REMOVE/INSTALL THE WINDSHIELD OR A WINDOW. DO NOT USE A LEVER AGAINST THE EDGE OF THE WINDSHIELD OR WINDOW. IF YOU DO NOT OBEY THESE INSTRUCTIONS, YOU WILL CAUSE DAMAGE TO THE WINDSHIELD OR WINDOW.

CAUTION: BEFORE YOU INSTALL/REMOVE THE GSE-TOOL, READ THE INSTRUCTIONS IN THE APPLICABLE GSE INSTRUCTION MANUAL. WHILE YOU OPERATE THIS TOOL, CAREFULLY OBEY THEM. IF YOU DO NOT OBEY THE INSTRUCTIONS, DAMAGE TO EQUIPMENT CAN OCCUR.

ZONE: 210
FIN: 3DG1
FIN: 3DG2

1. Reason for the Job

NOTE: Two persons are necessary for this procedure.

NOTE: There are alternative procedures for the installation of the windshield. This task gives one of the procedures. The other procedures are given in the related task of this page block.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific	1	BRUSH - NON METALLIC
No specific	1	LEVER - NON METALLIC
No specific	2	LOCALLY MANUFACTURED - SHIM PLATE
No specific	2	SHIM 38X38X20 MM (1.49X1.49X0.78 IN) - WOODEN
No specific	2	SHIM THICKNESS 1.4 MM (0.05 IN) - WOODEN
No specific	Torque wrench: range to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in )
No specific	Torque wrench: range to between 1.8 and 1.6 m.daN (13.27 and 11.80 lbf.ft )
98D56103001000	1	INSTALLATION TOOL-FRONT WINDOW PANELS
RCEWSCPA320	1	A320 WINDSHIELD RAPID CURING SYSTEM

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03FAB1)	Mineral Oil base Grease-- Vaseline or Petrolatum -
(Material No.05RAB9)	Adhesive Film Tape-- Aluminium Foil -
(Material No.06ABF1)	Polysulfide Sealant-Fuel Tank Quick Curing -
(Material No.06AEB2)	Polysulfide Sealant-Low Adhesion Fillet Structure
(Material No.06BEC1)	Silicone Sealant-Windshield Two parts Quick Curing -
(Material No.06LCG9)	Non Hardening Jointing Putty-Medium Temp. Area - -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.13GAB8)	Low density compound-- Low temperature curing Legacy 2

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
49	O-RING	AIPC 30-45-01-02-080
49	O-RING	AIPC 30-45-81-02-120

E. Referenced Information

REFERENCE	DESIGNATION
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 25-13-41-400-802-A	Installation of the Flight-Deck Eye-Position Ball-Mount Assembly
TASK 30-42-00-710-001-A	Operational Test of the Windshield Anti-Icing and Defogging
TASK 30-45-44-400-001-A	Installation of the Spray Nozzle
TASK 30-45-52-400-002-A	Installation of the Wiper Arm
TASK 30-81-21-400-001-A	Installation of the Lighted Icing Indicator
TASK 56-10-00-110-001-A	Cleaning of the L/R Windshields
ASM 304201
ASM 304202
Windshield - Sealant Application
Windshield - Removal/Installation
A320 Windshield Rapid Curing System - Removal/Installation
Windshield - Removal/Installation
Windshield - Removal/Installation
Example of Windshield Attachment Screws - Torque Sequence
Windshield (PPG Supplier) - Clearances
Windshield (SGS Supplier) - Clearances
Windshield (GKN Supplier) - Clearances
Windshield - Component Location

3. Job Set-up
Subtask 56-11-11-860-050-A

A. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position at zone 210, in front of the windshield.

Subtask 56-11-11-865-051-A

WARNING: MAKE SURE THAT THE CIRCUIT BREAKERS RELATED TO THE WEATHER RADAR ARE OPENED, SAFETIED AND TAGGED.

B. 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	LIGHTING/STBY/COMP/LIGHT	1LF	H04
** ON A/C NOT FOR ALL
49VU	LIGHTING/STBY/COMP/LIGHT	1LF	H02
** ON A/C ALL
121VU	COM NAV/RADAR/1	5SQ1	K13
** ON A/C NOT FOR ALL
121VU	COM NAV/RADAR/2	5SQ2	K14
** ON A/C ALL
122VU	ANTI ICE/WINDOWS/R	4DG2	W14
122VU	ANTI ICE/WHC/2	5DG2	W13
122VU	ANTI ICE/WINDOWS/L	4DG1	X14
122VU	ANTI ICE/WHC/1	5DG1	X13
123VU	ANTI ICE/L/WHSLD	1DG1	AF10
123VU	ANTI ICE/R/WHSLD	1DG2	AF03

Subtask 56-11-11-110-050-D

C. Preparation for the Installation

Windshield - Sealant Application

(1) Clean the windshield housing and the retainers with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Apply Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) with the BRUSH - NON METALLIC on the windshield-panel mounting surfaces, the framework and the retainers.
(3) Make sure that the fastener holes at the upper horizontal frame are correctly filled with sealant:
(a) If you use a sealant different from the remaining sealant, clean the fastener countersinks with Non Aqueous Cleaner-General - - (Material No.08BAA9) to remove the remaining sealant.
(b) If the fastener holes are not correctly filled, apply Low density compound-- Low temperature curing Legacy 2 (Material No.13GAB8) to make the upper horizontal frame flat in the seal contact area. This will prevent pressure leaks.

NOTE: You can use RESIN EC3524 B/A as an alternative to the low-density compound. The sealant-kit manufacturer's instructions give the sealant cure time and the mixing ratio.

4. Procedure
Subtask 56-11-11-420-050-A

A. Installation of the Windshield Panel

Windshield - Removal/Installation

CAUTION: DO NOT USE A SUCTION CUP TO HOLD THE INNER SURFACE OF THE WINDSHIELD PANEL IF THE PANEL HAS A SOFT (SELF-HEALING) LINER (SUPPLIER SPS). THE SUCTION CUP WILL CAUSE DAMAGE TO THE SOFT LINER. DO NOT TRY TO REMOVE THE SOFT LINER. THE SOFT LINER IS A PART OF THE WINDSHIELD PANEL.

CAUTION: REMOVE THE WINDSHIELD PANELS FROM THEIR CONTAINER ONLY WHERE AND WHEN YOU INSTALL THEM. KEEP THE PROTECTIVE FILM ON THE INTERNAL AND EXTERNAL SURFACES OF THE WINDSHIELD:

WHEN YOU INSTALL THE PANELS
WHEN YOU USE THE CENTERING TOOL.

(1) Put the 98D56103001000 INSTALLATION TOOL-FRONT WINDOW PANELS in position on the windshield frame:
(a) Install the fitting (74) on the center frame with the bolts (75) and the nuts (70).
(b) Safety the windshield panel (14) with the suction cup (73).
(c) Tighten the adjustable stops (72) of the windshield to make the suction cup (73) stable.
(2) Install the SHIM 38X38X20 MM (1.49X1.49X0.78 IN) - WOODEN on the bottom part of the windshield housing.
(3) Put the windshield panel (14) in position in its housing.

NOTE: Two persons are necessary to install the windshield panel (14):

One person out of the aircraft to hold the windshield panel (14)
One person in the aircraft with one arm through the sliding window and one hand on the inner face of the windshield panel (14) (to put the windshield panel (14) in the frame).

(4) Remove the two shims.
(5) Remove the 98D56103001000 INSTALLATION TOOL-FRONT WINDOW PANELS:
(a) Loosen the adjustable stops (72).
(b) Release the suction cup (73).
(c) Remove the bolts (75) and the nuts (70).
(d) Remove the 98D56103001000 INSTALLATION TOOL-FRONT WINDOW PANELS.

Subtask 56-11-11-914-050-A

B. Sealant Application

Windshield - Sealant Application

A320 Windshield Rapid Curing System - Removal/Installation

(1) The primers related to the sealants help to get a better bond of the sealants. These primers are mandatory and it is necessary to apply them before the related sealants.
(2) Apply a bead of Silicone Sealant-Windshield Two parts Quick Curing - (Material No.06BEC1) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) on:

The intersection area of the frame structure and the lower retainer
The intersection area of the frame structure and the upper retainer
The intersection area of the frame structure and the center retainer.

NOTE: You can use PR1436G, DAPCO 72, PR1826B or PR1828B as an alternative to the low-density sealant. The sealant-kit manufacturer's instructions give the sealant cure time and the mixing ratio.

(3) Apply a bead of Silicone Sealant-Windshield Two parts Quick Curing - (Material No.06BEC1) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) on:

The internal side of the lower retainer (12) and the upper retainer (31), at each extremity
The internal side of the center retainer (18), at the edges which touch the upper retainer (31) and the lower retainer (12).

(4) If there is not sufficient time for the sealant to cure before the aircraft takes off, do the procedure that follows:

CAUTION: BEFORE YOU APPLY THE TAPE, MAKE SURE THAT THE SEALANT IS NOT TACKY. IF IT IS TACKY, THE TAPE CAN CAUSE DAMAGE TO THE SEALANT.

CAUTION: WHEN YOU APPLY THE TAPE, MAKE SURE THAT THERE ARE NO BUBBLES. THIS WILL HELP TO PREVENT THE REMOVAL OF THE TAPE DURING FLIGHT.

(a) Put a strip of Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) on the intersection areas.
(b) Do a visual check of the intersection areas after each flight.
(c) Remove the strip of Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) after the sealant cure time.

NOTE: During the flight, the temperature is less than 10 deg. C and the sealants do not dry. The flight hours are not included in the sealant cure time.

(5) If there is not sufficient time for the sealant to cure (before the aircraft takes off) and if you have the RCEWSCPA320 A320 WINDSHIELD RAPID CURING SYSTEM, do this procedure:

NOTE: The RCEWSCPA320 A320 WINDSHIELD RAPID CURING SYSTEM contains the Windshield Rapid Curing System (WRCS) control panel and the emitters.

(a) Installation of the RCEWSCPA320 A320 WINDSHIELD RAPID CURING SYSTEM on the aircraft:
1 Install the WRCS control panel on the aircraft.
2 Connect the vacuum supply tube to the WRCS control panel.
3 Connect the three heating element wires to the WRCS control panel.
4 Connect the temperature probes to the emitters. Make sure that the temperature probes are as near as possible to the sealant on the windshield.
5 Energize the WRCS control panel.
6 Make sure that there is suction and a vacuum at the suction cups and the temperature probes.
7 On the WRCS control panel, select the cycle type in relation to the sealant type.
(b) Removal of the RCEWSCPA320 A320 WINDSHIELD RAPID CURING SYSTEM from the aircraft:
1 De-energize the WRCS control panel.
2 Disconnect the vacuum supply tube from the WRCS control panel.
3 Disconnect the three heating element wires from the WRCS control panel.
4 Disconnect the temperature probes from the emitters.
5 Remove the WRCS control panel from the aircraft.

Subtask 56-11-11-420-053-B

C. Installation of the Lower Retainer

Windshield - Removal/Installation

(1) Put the lower retainer (12) in position and install the SHIM THICKNESS 1.4 MM (0.05 IN) - WOODEN between the lower retainer (12) and the windshield panel (14).
(2) Lift the lower retainer (12) with the LEVER - NON METALLIC and install the LOCALLY MANUFACTURED - SHIM PLATE (thickness 7 mm (0.2756 in.)) between the lower retainer (12) and the aircraft structure.
(3) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) below the heads of the screws (13).
(4) Install the washers (28) and the screws (13).
(5) Lightly tighten the screws (13).

Subtask 56-11-11-820-051-A

D. Adjustment of the Windshield

Windshield - Removal/Installation

CAUTION: REMOVE THE WINDSHIELD PANELS FROM THEIR CONTAINER ONLY WHERE AND WHEN YOU INSTALL THEM. KEEP THE PROTECTIVE FILM ON THE INTERNAL AND EXTERNAL SURFACES OF THE WINDSHIELD:

WHEN YOU INSTALL THE PANELS
WHEN YOU USE THE CENTERING TOOL.

(1) Put the 98D56103001000 INSTALLATION TOOL-FRONT WINDOW PANELS in position in the windshield frame:
(a) Install the fitting (74) on the center frame with the bolts (75) and the nuts (70).
(b) Safety the windshield with the suction cup (73).
(c) Tighten the adjustable stops (72) of the windshield panel (14) to make the suction cup (73) stable.
(2) Adjust the windshield panel (14) with the operating rod (71) to get peripheral clearance J1 of 1 -1 mm or +0.5 mm (0.0394 -0.0394 in. or +0.0197 in.) at the related lateral post.
(3) Remove the 98D56103001000 INSTALLATION TOOL-FRONT WINDOW PANELS:
(a) Loosen the adjustable stops (72).
(b) Release the suction cup (73).
(c) Remove the bolts (75) and the nuts (70).
(d) Remove the 98D56103001000 INSTALLATION TOOL-FRONT WINDOW PANELS.

Subtask 56-11-11-420-054-F

E. Installation of the Retainers

Windshield - Removal/Installation

Example of Windshield Attachment Screws - Torque Sequence

(1) Install the upper retainers (31) and the center retainer (18).
(2) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) below the heads of the screws (13), (23), (24), (27) and (32).
(3) Install the flight-deck eye-position ball-mount assembly (Ref. AMM TASK 25-13-41-400-802).
(4) Install the washers (25), (28) and (30), the screws (13), (23), (24), (27) and (32), the washers (10) and the nuts (11). Make sure that you install them in the correct position.

NOTE: The screws (24) and (32) have different lengths.

(5) Tighten the nuts (11) and the screws (13), (23), (24), (27) and (32) with your hand.
(6) Install the icing indicator (26) at the applicable location (Ref. AMM TASK 30-81-21-400-001).
(7) TORQUE the nuts (11) and the screws (13), (23), (24), (27) and (32) to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in )

.
(8) TORQUE again the nuts (11) and the screws (13), (23), (24), (27) and (32) to between 1.8 and 1.6 m.daN (13.27 and 11.80 lbf.ft )

.
(9) Do the electrical bonding of the icing indicator (26) at the applicable location (Ref. AMM TASK 20-28-00-912-802).
(10) Remove the shims between the lower retainers (12), the windshield panel (14) and the aircraft structure.
(11) Remove the CAP-BLANKING from each electrical connector and receptacle.
(12) Make sure that pins A/C and A/D of the sensor (15) of the windshield panel (14) are connected to pins B/A and B/B of the Window Heat Computer (WHC).
(13) Connect the sensor (15) to the receptacle of the windshield ASM 304201 or ASM 304202.

Subtask 56-11-11-820-054-A

F. Check of the Clearances

Windshield (PPG Supplier) - Clearances

Windshield (SGS Supplier) - Clearances

Windshield (GKN Supplier) - Clearances

(1) Make sure that the value of peripheral clearance J1 (between the retainers) at the measurement points agrees with the value given in the related figure for:

The windshield (PPG supplier)
The windshield (SGS supplier)
The windshield (GKN supplier).

NOTE: Peripheral clearance J1 between 0.3 mm (0.0118 in.) and 2.5 mm (0.0984 in.) is permitted at the measurement points for all the windshields.

(2) Make sure that the value of peripheral clearance J2 (between the frame and the retainers) at the measurement points agrees with the value given in the related figure for:

The windshield (PPG supplier)
The windshield (SGS supplier)
The windshield (GKN supplier).

NOTE: Peripheral clearance J2 between 0.3 mm (0.0118 in.) and 2.5 mm (0.0984 in.) is permitted at the measurement points for all the windshields.

(3) Make sure that the value of peripheral clearance J3 (between the retainers and the frame) at the measurement points agrees with the value given in the related figure for:

The windshield (PPG supplier)
The windshield (SGS supplier)
The windshield (GKN supplier).

NOTE: Peripheral clearance J3 between 5.5 mm (0.2165 in.) and 8.5 mm (0.3346 in.) is permitted at the measurement points for all the windshields.

(4) Make sure that the values of peripheral clearances J4 and J5 (between the retainers and the windshield panel and between the frame and the windshield panel) at the measurement points agree with the values given in the related figure for:

The windshield (PPG supplier)
The windshield (SGS supplier)
The windshield (GKN supplier).

NOTE: Peripheral clearances J4 and J5 between 0 mm (0.0000 in.) and 2.5 mm (0.0984 in.) are permitted at the measurement points for all the windshields.

(5) Make sure that the value of out-of-flush dimension A1 (between the retainers) at the measurement points agrees with the value given in the related figure for:

The windshield (PPG supplier)
The windshield (SGS supplier)
The windshield (GKN supplier).

NOTE: Out-of-flush dimension A1 between -1 mm (-0.0394 in.) and 1 mm (0.0394 in.) is permitted at the measurement points for all the windshields.

(6) Make sure that the value of out-of-flush dimension A2 (between the frame and the retainers) at the measurement points agrees with the value given in the related figure for:

The windshield (PPG supplier)
The windshield (SGS supplier)
The windshield (GKN supplier).

NOTE: Out-of-flush dimension A2 between -1 mm (-0.0394 in.) and 1 mm (0.0394 in.) is permitted at the measurement points for all the windshields.

(7) Make sure that the values of out-of-flush dimension A3 (between the windshield panel and the retainers and between the frame and the windshield panel) at the measurement points agree with the values given in the related figure for:

The windshield (PPG supplier)
The windshield (SGS supplier)

NOTE: Out-of-flush dimension A3 between -1.3 mm (-0.0512 in.) and 0.7 mm (0.0276 in.) is permitted at the measurement points for the windshields (PPG supplier and SGS supplier).

The windshield (GKN supplier).

NOTE: Out-of-flush dimension A3 between -0.6 mm (-0.0236 in.) and 1.7 mm (0.0669 in.) is permitted at the measurement points for the windshield (GKN supplier, not for P/N 25022 (25023)).

NOTE: Out-of-flush dimension A3 between -1.2 mm (-0.0472 in.) and 1.2 mm (0.0472 in.) is permitted at the measurement points for the windshield (GKN supplier, for P/N 25022 (25023) only).

Subtask 56-11-11-914-051-B

G. Sealant Application

Windshield - Sealant Application

(1) The primers related to the sealants help to get a better bond of the sealants. These primers are mandatory and it is necessary to apply them before the related sealants.
(2) Apply Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) around the bottom of the icing indicator which touches the external surface of the retainers.
(3) Remove the remaining sealant from the intersection area of:

The frame structure and the lower retainer
The frame structure and the upper retainer
The center, upper and lower retainers.

(4) Apply Silicone Sealant-Windshield Two parts Quick Curing - (Material No.06BEC1) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) if it is necessary to fill the remaining spaces.
(5) Make sure that the bead of sealant is continuous.

NOTE: You can use PR1436G, DAPCO 72, PR1826B or PR1828B as an alternative to the low-density sealant. The sealant-kit manufacturer's instructions give the sealant cure time and the mixing ratio.

(6) Apply Silicone Sealant-Windshield Two parts Quick Curing - (Material No.06BEC1) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) on all the screws spot-facings.
(7) Clean the external surfaces of the structure with Non Aqueous Cleaner-General - - (Material No.08BAA9) to remove the remaining sealant from the structure.

Subtask 56-11-11-420-055-A

H. Installation of the Protection Plate

Windshield - Removal/Installation

(1) Put the protection plate (19) in position.
(2) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) below the heads of the screws (20), (21) and (22).

CAUTION: WHEN YOU INSTALL THE PROTECTION PLATE, MAKE SURE THAT YOU PUT EACH SCREW IN ITS CORRECT LOCATION (THERE ARE TWO DIFFERENT LENGTHS OF SCREW). IF THE LENGTHS OF THE SCREWS ARE NOT CORRECT, THEY CAN CAUSE DAMAGE TO THE DOME NUTS.

CAUTION: MAKE SURE THAT NO WATER OR MOISTURE GOES INTO THE DOME NUTS DURING REMOVAL OF THE PROTECTION PLATE. THIS WILL PREVENT CORROSION OF THE DOME NUTS.

(3) Install the screws (20), (21) and (22).
(4) Tighten the screws (20), (21) and (22).

Subtask 56-11-11-420-056-A

I. Installation of the Components

Windshield - Component Location

(1) Put lining panels 211NW and 212NW (3) in position on the windshield.
(2) Install the screws (5) and the nuts (4).
(3) Install the louver of the glareshield panels (47).
(4) Install the screws (46).
(5) Put vertical lining panel 211MW (1) in position on the windshield post.
(6) Install the screws (2) and the washers (9).
(7) Put lining panel 211LW (7) in position.
(8) Install the stud assemblies (6).
(9) Tighten the stud assemblies (6).
(10) Tighten the fastener (8), the nuts (4) and the screws (5) and (2).
(11) Install the new AIPC 30-45-01-02-080 O-RING (49) or the new AIPC 30-45-81-02-120 O-RING (49).
(12) Install the nuts (45).
(13) Tighten the nuts (45).
(14) Install the spray nozzles (Ref. AMM TASK 30-45-44-400-001).

Subtask 56-11-11-110-051-A

J. Cleaning of the Windshield
(1) Remove the protective foil from the windshield.
(2) Clean the windshield (Ref. AMM TASK 56-10-00-110-001).

Subtask 56-11-11-865-052-A

K. 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	LIGHTING/STBY/COMP/LIGHT	1LF	H04
** ON A/C NOT FOR ALL
49VU	LIGHTING/STBY/COMP/LIGHT	1LF	H02
** ON A/C ALL
121VU	COM NAV/RADAR/1	5SQ1	K13
** ON A/C NOT FOR ALL
121VU	COM NAV/RADAR/2	5SQ2	K14
** ON A/C ALL
122VU	ANTI ICE/WINDOWS/R	4DG2	W14
122VU	ANTI ICE/WHC/2	5DG2	W13
122VU	ANTI ICE/WINDOWS/L	4DG1	X14
122VU	ANTI ICE/WHC/1	5DG1	X13
123VU	ANTI ICE/L/WHSLD	1DG1	AF10
123VU	ANTI ICE/R/WHSLD	1DG2	AF03

Subtask 56-11-11-710-050-A

L. Test
(1) Do the operational test of the anti-icing and defogging system of the windshield (Ref. AMM TASK 30-42-00-710-001).

5. Close-up
Subtask 56-11-11-410-052-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the wiper arm (Ref. AMM TASK 30-45-52-400-002).
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 02:06:57 UTC