Detailed Inspection of Window Seals

TASK 56-12-00-220-001-A
Detailed Inspection of Window Seals

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

ZONE: 210

1. Reason for the Job
Refer to the MPD TASK: 561200-01
DETAILED INSPECTION OF WINDOW SEALS

NOTE: This task can decrease the fuel consumption.

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	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

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

C. Referenced Information

REFERENCE	DESIGNATION
TASK 56-12-11-000-003-A	Removal of the Sliding Window Seal
TASK 56-12-11-000-003-A-01	Removal of the Sliding Window Seal
TASK 56-12-11-000-004-A	Removal of the Retainer/Gasket Assembly
TASK 56-12-11-000-004-A-01	Removal of the Retainer/Gasket Assembly
TASK 56-12-11-010-001-A	Opening of the Cockpit Sliding Windows
TASK 56-12-11-300-802-A	Repair of the Damaged Frame in the Seal Area of the Sliding Window
TASK 56-12-11-400-003-A	Installation of the Sliding Window Seal
TASK 56-12-11-400-003-A-01	Installation of the Sliding Window Seal
TASK 56-12-11-400-004-A	Installation of the Retainer/Gasket Assembly
TASK 56-12-11-400-004-A-01	Installation of the Retainer/Gasket Assembly
TASK 56-12-11-410-001-A	Closing of the Cockpit Sliding Windows

3. Job Set-up
Subtask 56-12-00-010-050-A

A. Get Access
(1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position at zone 210, in front of the sliding window.
(2) Open the sliding window (Ref. AMM TASK 56-12-11-010-001).

Subtask 56-12-00-865-050-A

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

4. Procedure
Subtask 56-12-00-220-050-A

A. Inspection
(1) For the acrylic sliding windows (GKN supplier, P/N NH...) and the glass sliding windows (PPG supplier, P/N NP...):

NOTE: The sliding window must be open to do this inspection.

(a) Do a detailed visual inspection of the seal of the sliding window for damage or discontinuities.
(b) Make sure that there are no cracks and blisters on the seal.

NOTE: It is permitted to fly with a damaged pressure seal (all types of damage) with no time limit. This is possible only if there is no pressure leak which causes an unsatisfactory noise level for the crew in the cockpit.

(c) If you find damage, replace the retainer/gasket assembly (Ref. AMM TASK 56-12-11-000-004) and (Ref. AMM TASK 56-12-11-400-004).
(2) For the glass sliding windows (SPS supplier, P/N SPS...):

NOTE: The sliding window must be open to do this inspection.

(a) Do a detailed visual inspection of the seal of the sliding window for damage or discontinuities.
(b) Make sure that there are no cracks and blisters on the seal.

NOTE: It is not necessary to remove the seal to examine the frame.

1 If you find damage, repair the frame (Ref. AMM TASK 56-12-11-300-802).
(d) If you find damage, replace the preformed seal (Ref. AMM TASK 56-12-11-000-003) and (Ref. AMM TASK 56-12-11-400-003).

5. Close-up
Subtask 56-12-00-865-051-A

A. Remove the safety clip(s) and the tag(s) and close 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 56-12-00-410-050-A

B. Close Access
(1) Close the sliding window (Ref. AMM TASK 56-12-11-410-001).
(2) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 02:07:12 UTC