DOC AIRBUS | AMM A320FInspection of the Fixed Windows
TASK 56-11-12-200-001-A
Inspection of the Fixed Windows
1. Reason for the Job
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 56-11-12-941-051-A
4. Procedure
Subtask 56-11-12-220-051-A
Subtask 56-11-12-865-060-A
[Rev.10 from 2021]
2026.04.01 02:07:08 UTC
Inspection of the Fixed Windows
1. Reason for the Job
NOTE: This procedure is applicable to:
2. Job Set-up Information- The acrylic fixed windows (GKN supplier, P/N NH...)
- The glass fixed windows (PPG supplier, P/N NP...)
- The glass fixed windows (SGS supplier, P/N SPS...).
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 2 | ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE |
| No specific | 1 | FLASHLIGHT |
| No specific | AR | LIGHT SOURCE - WHITE |
| No specific | AR | MAGNIFYING GLASS POWER 10X |
| No specific | AR | MICROMETER - OPTICAL |
| No specific | AR | RULER 150 MM (6 IN) - METALLIC |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| SJ201 | 1 | SURFACE TESTER |
| SJ210 | 1 | SURFACE TESTER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 211 | COCKPIT |
| 212 | COCKPIT |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 56-10-00-110-002-A | Cleaning of the L/R Fixed Windows |
| TASK 56-10-00-200-004-A | Measurement of the Scratch Depth with Mitutoyo Surface Tester SJ201 |
| TASK 56-10-00-200-004-A-01 | Measurement of the Scratch Depth with Mitutoyo Surface Tester SJ210 |
Acrylic Fixed Window - Permitted DamageSubtask 56-11-12-941-051-A
A. Get Access
(1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position in front of the windshield at zone 210 (only if you must do a detailed inspection from the outer side of the aircraft).
(2) Clean the fixed windows (Ref. AMM TASK 56-10-00-110-002).
Subtask 56-11-12-865-059-A (1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position in front of the windshield at zone 210 (only if you must do a detailed inspection from the outer side of the aircraft).
(2) Clean the fixed windows (Ref. AMM TASK 56-10-00-110-002).
WARNING:
MAKE SURE THAT THE CIRCUIT BREAKERS RELATED TO THE WEATHER RADAR ARE OPENED, SAFETIED AND TAGGED.
B. Open, safety and tag this(these) circuit breaker(s):| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** 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 56-11-12-220-051-A
A. Inspection of the Fixed Windows
(1) Inspection of the acrylic fixed windows (GKN supplier, P/N NH...)
1 Cracks
2 Scratches
3 Chips
4 Delamination
5 Bubbles
6 Discoloration or burning
7 Transparency
8 Crazing
9 Burn spots
10 Heating film cracks
(b) Examine the acrylic fixed windows for burn spots
1 Point the FLASHLIGHT at 45 degrees to the outer surface of the window panel.
2 Examine the busbar for burn spots.
(c) Examine the acrylic fixed windows for crazing
1 Put the RULER 150 MM (6 IN) - METALLIC perpendicular to the surface of the fixed window panel where you see the maximum depth of the crazing.
1 Cracks
2 Scratches
4 Delamination
5 Bubbles
6 Discoloration
7 Transparency
8 Interlayer microflakes
9 Burn spots
10 Heating film cracking
(b) Examine the glass fixed windows for burn spots
1 Point the LIGHT SOURCE - WHITE at 45 degrees to the outer surface of the window panel.
2 Examine the busbar for burn spots.
5. Close-up(1) Inspection of the acrylic fixed windows (GKN supplier, P/N NH...)
NOTE: In the inspection tables, the word "impaired" refers to the visibility. The visibility is impaired when defects have effects on it.
If the visibility is impaired, it is necessary to replace the window panel.
(a) Examine the acrylic fixed windows for: If the visibility is impaired, it is necessary to replace the window panel.
1 Cracks
2 Scratches
3 Chips
4 Delamination
5 Bubbles
6 Discoloration or burning
7 Transparency
8 Crazing
9 Burn spots
10 Heating film cracks
(b) Examine the acrylic fixed windows for burn spots
1 Point the FLASHLIGHT at 45 degrees to the outer surface of the window panel.
2 Examine the busbar for burn spots.
(c) Examine the acrylic fixed windows for crazing
1 Put the RULER 150 MM (6 IN) - METALLIC perpendicular to the surface of the fixed window panel where you see the maximum depth of the crazing.
NOTE: You can use the MICROMETER - OPTICAL as an alternative to the metal ruler.
2 Look at the ruler reflection with an angle of vision of 45 degrees to find the depth of the crazing. NOTE: The correct depth is approximately two times the depth found.
NOTE: You can use the MAGNIFYING GLASS POWER 10X as an optical aid where the depth of the crazing is at minimum.
(2) Inspection of the glass fixed windows (PPG supplier, P/N NP... and SGS supplier, P/N SPS...) NOTE: In the inspection tables, the word "impaired" refers to the visibility. The visibility is impaired when defects have effects on it.
If the visibility is impaired, it is necessary to replace the window panel.
(a) Examine the glass fixed windows for:If the visibility is impaired, it is necessary to replace the window panel.
1 Cracks
2 Scratches
NOTE: There are two procedures to measure the depth of the scratches. The fingernail procedure which helps you to measure an approximate depth of the scratches. The MITUTOYO surface-tester procedure which helps you to measure the accurate depth of the scratches. If the MITUTOYO surface tester is available, the MITUTOYO surface-tester procedure is recommended because it gives accurate measurement results.
a If you see scratches, you must do a check of the depth of the scratches: - With the MITUTOYO SJ201 SURFACE TESTER (SJ201) or the MITUTOYO SJ210 SURFACE TESTER (SJ210) (Ref. AMM TASK 56-10-00-200-004) (Ref. AMM TASK 56-10-00-200-004), or
- With your fingernail.
4 Delamination
5 Bubbles
6 Discoloration
7 Transparency
8 Interlayer microflakes
9 Burn spots
10 Heating film cracking
(b) Examine the glass fixed windows for burn spots
1 Point the LIGHT SOURCE - WHITE at 45 degrees to the outer surface of the window panel.
2 Examine the busbar for burn spots.
Subtask 56-11-12-865-060-A
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 56-11-12-942-054-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** 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 |
B. Close Access
(1) Remove the access platform(s).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Remove the access platform(s).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.