[A320] 320航线风挡检查

windows

1. General

Windows are installed in the aircraft cockpit and the cabin. The different types and locations of the windows are:

- the cockpit windows (windshield, fixed and sliding side),

- the cabin windows,

- the cabin dummy windows,

- the passenger/crew door windows.

3. Description

A. Cockpit

(1) Fixed Windows

(a) The cockpit window-frames are riveted to the fuselage. The windshields and fixed side windows are installed directly into the frame structure. Installation is made from the external area of the cockpit.

(b) Each windshield assembly is made of a number of layers of toughened glass. The fixed side windows are made of a number of layers of stretched acrylic laminate. Each assembly is set in a moulded silicon-rubber seal.

(c) The windshields and fixed side windows are chemically strengthened and are resistant to hail and bird-strike damage. Electrical heating elements give clear vision in all conditions.

(2) Sliding Windows

(a) The sliding side-windows are attached to support tracks before they are installed in the frame structure. Installation of the sliding side-window assembly is made in the cockpit.

(b) The sliding side-windows are made of several layers of stretched acrylic laminate. Each assembly is set in a moulded silicon-rubber seal.

(c) The windows are chemically strengthened and are resistant to hail and bird-strike damage. Electrical heating elements give clear vision in all conditions.

(d) The sliding side windows have a mechanism to open, close and to lock them. The crew can use them as emergency exits.

56-11-00 - FIXED WINDOWS

1. General

There are four fixed windows installed in the cockpit:

- two windshields

- two fixed side windows between FR8 and FR11.

The left and right windows are symmetrical.

The windows are mounted in a frame which enables them to be removed and installed externally.

All windows are interchangeable.

2. Description

A. Windshields

1) Composition of the panel glass

The windshield panels are made up of several layers of different materials.

(2) Anti-icing and defogging system

The anti-icing and defogging system of the windshield panels consists of:

An almost invisible electrical conductor film which heats the windshield panels when an electrical current flows through it.

This film is installed on the inner surface of the outer sheet of glass.

The temperature is controlled by two probes.

An icing indicator is installed on the outer face of the windshield post to indicate the presence of ice.

(3) Frame

The windshield panels are mounted in a frame integrated in the nose structure.

The panels are clamped in position by three retainers bolted to the outer face of the frame.

B. Fixed Windows

1) Composition of the panel glass

The windshield panels are made up of several layers of different materials.

(2) Anti-icing and defogging system

The anti-icing and defogging system of the windshield panels consists of:

An almost invisible electrical conductor film which heats the windshield panels when an electrical current flows through it.

This film is installed on the inner surface of the outer sheet of glass.

The temperature is controlled by two probes.

An icing indicator is installed on the outer face of the windshield post to indicate the presence of ice.

(3) Frame

The windshield panels are mounted in a frame integrated in the nose structure.

The panels are clamped in position by three retainers bolted to the outer face of the frame.

B. Fixed Windows

(3) Frames

(a) Acrylic windows (GKN (formerly LUCAS/ACT) supplier) and glass windows (PPG and SGS (formerly SPS) suppliers) windows are mounted on a removable frame enabling the window to be bolted on to the window frame on the aircraft. This assembly is sealed with sealing compound.

56-11-11 - WINDSHIELD

Inspection of the Windshields

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

1. Reason for the Job

Self explanatory

2. Job Set-up Information

A. Fixtures, Tools, Test and Support Equipment

REFERENCE QTY DESIGNATION

No specific 2 ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE

No specific AR SAFETY CLIP - CIRCUIT BREAKER

(SJ201) 1 SURFACE TESTER

(SJ210) 1 SURFACE TESTER

B. Work Zones and Access Panels

ZONE/ACCESS ZONE DESCRIPTION

210 CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

211 COCKPIT

212 COCKPIT

831 FORWARD PASSENGER/CREW DOOR

841 FORWARD PASSENGER/CREW DOOR

C. Referenced Information

REFERENCE DESIGNATION

52-10-00-010-001-A Opening of the Passenger/Crew Door

52-10-00-410-001-A Closing of the Passenger/Crew Door

56-10-00-110-001-A Cleaning of the L/R Windshields

56-10-00-200-004-A Measurement of Scratch Depth with MITUTOYO Surface Tester SJ201

56-10-00-200-004-A-01 Measurement of Scratch Depth with MITUTOYO Surface Tester SJ210

56-11-11-300-002-A Repair of the Soft Liner (SGS (formerly SPS) Windshield)

Windshields - Permitted Damage SHEET 1

Windshields - Permitted Damage SHEET 1

Windshields - Permitted Damage SHEET 1

Windshields - Permitted Damage SHEET 1

Windshields - Permitted Damage SHEET 1

Windshields - Permitted Damage SHEET 1

Windshields - Permitted Damage SHEET 1

Windshields - Permitted Damage SHEET 1

Windshields - Permitted Damage SHEET 1

3. Job Set-up

Subtask 56-11-11-941-055-A

A. Get Access

(1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position in front of the windshield at zone 210.

(2) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position in front of the applicable passenger/crew door 831 or 841.

(3) Open the applicable forward passenger/crew door (Ref. AMM TASK 52-10-00-010-001) .

(4) Clean the windshields (Ref. AMM TASK 56-10-00-110-001) .

Subtask 56-11-11-865-059-A

B. Open, safety and tag this(these) circuit breaker(s):

4. Procedure

Subtask 56-11-11-220-051-A

A. Inspection of the Windshields

NOTE: "Impaired": in inspection tables, the word "impaired" refers to visibility. Visibility is "impaired" when defects have an effect on visibility.

If visibility is "impaired", you must replace the windshield.

(1) Examine the windshield for:

(a) Cracks

(b) Scratches

1 If you see scratches, you must do a check of the depth of the scratches:

- With your finger nail or

- With the MITUTOYO SURFACE TESTER (SJ201) (SJ201) or MITUTOYO SURFACE TESTER (SJ210) (SJ210) (Ref. AMM TASK 56-10-00-200-004) (Ref. AMM TASK 56-10-00-200-004)

NOTE: There are two methods to help classify the depth of the damage. The fingernail method quickly and approximately measures the damage and the MITUTOYO surface tester method accurately measures the depth of the damage. If the MITUTOYO surface tester is available, you must use the more accurate measurement to classify the damage.

(c) Chips

(d) Delamination

NOTE: There is a tape on the windshield. This tape is necessary to prevent cracks in the non heated areas (corners of the windows).

(e) Discoloration

(f) Interlayer microflakes.

(g) Bubbles

(h) Burn spots

(i) Transparency

(j) Rain-repellent fluid residue.

(k) Damage on the soft liner

NOTE: This damage is only applicable to the windshield panel that has a soft liner (self healing liner, SGS (formerly SPS) supplier, P/N SPSA320...).

1 If necessary, repair the soft liner to remove the scratches or other damage (Ref. AMM TASK 56-11-11-300-002) .

(l) Heating film cracking.