Installation of the SLIDE ARMED Indicator Light on the Overwing Emergency-Exit Door

TASK 52-73-21-400-802-A
Installation of the SLIDE ARMED Indicator Light on the Overwing Emergency-Exit Door

ZONE: 833
ZONE: 834
ZONE: 843
ZONE: 844
FIN: 35WN1 ** ON A/C NOT FOR ALL
FIN: 35WN2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
833	EMERGENCY EXITS
834	EMERGENCY EXITS
843	EMERGENCY EXITS
844	EMERGENCY EXITS

B. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 25-23-47-000-805-A	Removal of the Door Frame Lining from the Overwing Emergency Exit
TASK 25-23-47-400-805-A	Installation of the Door Frame Lining on the Overwing Emergency Exit
TASK 25-62-00-081-001-A	Special Precautions after Work on the Offwing Escape-Slide Systems
TASK 25-62-00-481-001-A	Special Precautions before Work on the Offwing Escape-Slide Systems
TASK 33-51-13-000-001-A	Removal of the Cabin Wall-Mounted Emergency-Exit-Markers
TASK 33-51-13-400-001-A	Installation of the Cabin Wall-Mounted Emergency-Exit-Markers
TASK 33-51-16-000-001-A	Removal of the Emergency Exit Sign
TASK 33-51-16-400-001-A	Installation of the Emergency Exit Sign
TASK 52-22-00-010-802-A	Opening of the Overwing Emergency-Exit Door from the Passenger Compartment
TASK 52-22-00-410-802-A	Closing of the Overwing Emergency-Exit Door from the Passenger Compartment
TASK 52-73-00-710-002-E	Operational Test of the Warning System Related to the Emergency Exit Doors
SLIDE ARMED Indicator Light of the Overwing Emergency-Exit Door

3. Job Set-up
Subtask 52-73-21-865-072-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10

Subtask 52-73-21-860-062-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized.
(Ref. AMM TASK 24-41-00-861-002).
(2) Obey the special precautions before the work on the overwing escape-slide system (Ref. AMM TASK 25-62-00-481-001).

Subtask 52-73-21-010-065-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the emergency EXIT sign is removed (Ref. AMM TASK 33-51-16-000-001):
(a) FOR [35WN1] (IND LT-SLIDE ARMED, L OVERWING DOORS), [430WL] (EXIT MARKING SIGN)
(b) FOR [35WN2] (IND LT-SLIDE ARMED, R OVERWING DOORS), [420WL] (EXIT MARKING SIGN)
(2) Make sure that the cabin wall-mounted emergency-EXIT-markers are removed (Ref. AMM TASK 33-51-13-000-001):
(a) FOR [35WN1] (IND LT-SLIDE ARMED, L OVERWING DOORS), [95WL5] (EMERGENCY LIGHT)
(b) FOR [35WN2] (IND LT-SLIDE ARMED, R OVERWING DOORS), [95WL6] (EMERGENCY LIGHT)
(3) Make sure that the applicable overwing emergency-exit door is open (Ref. AMM TASK 52-22-00-010-802).
(4) Make sure that the applicable frame lining (1) is removed (Ref. AMM TASK 25-23-47-000-805).

4. Procedure
Subtask 52-73-21-420-062-A ** ON A/C NOT FOR ALL

A. Installation of the SLIDE ARMED Indicator Light
(1) Install the SLIDE ARMED indicator light (4) in the frame lining (1). Make sure that the latches (2) engage in the frame lining (1).
(2) Remove the CAP-BLANKING from each electrical connector and receptacle.
(3) Connect the electrical connector (5) to the electrical receptacle (6).
(4) Install the frame lining (1) on the applicable overwing emergency-exit door (Ref. AMM TASK 25-23-47-400-805).
(5) Close the related overwing emergency-exit door (Ref. AMM TASK 52-22-00-410-802).

Subtask 52-73-21-865-075-A ** ON A/C NOT FOR ALL

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
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10

Subtask 52-73-21-710-058-A ** ON A/C NOT FOR ALL

C. Operational Test
(1) Do an operational test of the SLIDE ARMED indicator light (4) related to the overwing emergency-exit door (Ref. AMM TASK 52-73-00-710-002).

5. Close-up
Subtask 52-73-21-410-065-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Install the emergency EXIT sign (Ref. AMM TASK 33-51-16-400-001):
(a) FOR [35WN1] (IND LT-SLIDE ARMED, L OVERWING DOORS), [430WL] (EXIT MARKING SIGN)
(b) FOR [35WN2] (IND LT-SLIDE ARMED, R OVERWING DOORS), [420WL] (EXIT MARKING SIGN)
(2) Install the cabin wall-mounted emergency-EXIT-markers (Ref. AMM TASK 33-51-13-400-001):
(a) FOR [35WN1] (IND LT-SLIDE ARMED, L OVERWING DOORS), [95WL5] (EMERGENCY LIGHT)
(b) FOR [35WN2] (IND LT-SLIDE ARMED, R OVERWING DOORS), [95WL6] (EMERGENCY LIGHT)
(3) Obey the special precautions after the work on the overwing escape-slide system (Ref. AMM TASK 25-62-00-081-001).

Subtask 52-73-21-860-064-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that the work area is clean and clear of tools and other items.
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 06:08:59 UTC