Installation of the SLIDE ARMED Indicator Light of the Aft Emergency Exits

TASK 52-73-21-400-003-E
Installation of the SLIDE ARMED Indicator Light of the Aft Emergency Exits

ZONE: 835
ZONE: 845
FIN: 2WN1 ** ON A/C NOT FOR ALL
FIN: 2WN2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
835	MID PASSENGER/CREW DOOR
845	MID PASSENGER/CREW DOOR
835, 845
FOR [2WN1] (IND LT-SLIDE ARMED, L EMER EXIT)
835CZ
FOR [2WN2] (IND LT-SLIDE ARMED, R EMER EXIT)
845CZ

C. 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 25-23-47-400-802-A	Installation of the Door Linings of the Emergency Exit, zones 251/252
TASK 52-22-00-410-002-A	Closing of the Emergency Exit Doors from the Outside
TASK 52-73-00-710-002-E	Operational Test of the Warning System Related to the Emergency Exit Doors
Aft Emergency Exits - SLIDE ARMED Indicator Light

3. Job Set-up
Subtask 52-73-21-860-060-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position at applicable emergency exit 835 or 845.
(2) Make sure that the aircraft electrical circuits are energized.
(Ref. AMM TASK 24-41-00-861-002).

Subtask 52-73-21-865-069-A ** ON A/C NOT FOR ALL

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
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

4. Procedure
Subtask 52-73-21-420-060-A ** ON A/C NOT FOR ALL

A. Installation of the SLIDE ARMED Indicator Light
(1) Install the SLIDE ARMED indicator light (2) on its support.
(2) Remove the CAP-BLANKING from each electrical connector and receptacle.
(3) Connect the electrical connector (3) to the electrical connector (4).

Subtask 52-73-21-865-070-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
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

Subtask 52-73-21-710-056-A ** ON A/C NOT FOR ALL

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

5. Close-up
Subtask 52-73-21-420-061-A ** ON A/C NOT FOR ALL

A. Installation of the Door Lining Panel
(1) Install the insulation.
(2) Install the removed door lining panel (Ref. AMM TASK 25-23-47-400-802):
(a) FOR [2WN1] (IND LT-SLIDE ARMED, L EMER EXIT)

Lining panel 835CZ.

(b) FOR [2WN2] (IND LT-SLIDE ARMED, R EMER EXIT)

Lining panel 845CZ.

Subtask 52-73-21-410-062-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close applicable emergency exit 835 or 845 (Ref. AMM TASK 52-22-00-410-002).
(3) Remove the access platform(s).

Subtask 52-73-21-862-051-A ** ON A/C NOT FOR ALL

C. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 01:49:01 UTC