Check of the Manual Operation from the two Control Panels and of all the Cabin Lights and Signs illuminated by Batteries

TASK 33-51-00-710-004-A
Check of the Manual Operation from the two Control Panels and of all the Cabin Lights and Signs illuminated by Batteries

ZONE: 200

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

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

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 33-51-00-00	CABIN EMERGENCY LIGHTING - DESCRIPTION AND OPERATION

3. Job Set-up

CAUTION: DO NOT USE THE TEACH-IN PROCEDURE TO CLEAR EPSU FAILURE MESSAGES. THE TEACH-IN PROCEDURE IS NOT A SYSTEM RESET. IT CAN CHANGE THE EMERGENCY LIGHT CONFIGURATION AND CAUSE HIDDEN FAILURES.

NOTE: The teach-in procedure of the EPSUs measures and keeps the load values that are related to each EPSU. The EPSU controller refers to these load values when the BITE test of the emergency lighting system operates. Thus, it is necessary that the emergency lights of the related EPSUs operate correctly during the teach-in procedure.

Subtask 33-51-00-861-053-A

A. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 33-51-00-865-053-A

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	2WL	H06
49VU	LIGHTING/EMER LT/CABIN	1WL	H05
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	2WL	H04
49VU	LIGHTING/EMER LT/CABIN	1WL	H03
** ON A/C ALL
122VU	LIGHTING/CABIN/EMER/LT	3WL	V07

4. Procedure
Subtask 33-51-00-860-081-A ** ON A/C NOT FOR ALL

A. Preparation for Test
(1) On the overhead panel 25VU, make sure that the EMER EXIT LT switch 4WL is in the OFF position.
(2) On the overhead panel 25VU, make sure that the NO SMOKING switch 190RH is in the OFF position.
(3) On the Forward Attendant Panel (FAP) 120RH, make sure that the LIGHT EMER pushbutton switch and its integral light are off.

Subtask 33-51-00-860-081-D ** ON A/C NOT FOR ALL

A. Preparation for Test
(1) On the overhead panel 25VU, make sure that the EMER EXIT LT switch 4WL is in the OFF position.
(2) On the overhead panel 25VU, make sure that the NO SMOKING switch 190RH is in the OFF position.
(3) On the Flight Attendant Panel (FAP) 120RH, make sure that the EMER pushbutton switch and its integral light are off.

Subtask 33-51-00-860-081-E ** ON A/C NOT FOR ALL

A. Preparation for Test
(1) On overhead panel 25VU, make sure that EMER EXIT LT switch 4WL is in the OFF position.
(2) On overhead panel 25VU, make sure that EXIT switch 190RH is in the OFF position.
(3) On Flight Attendant Panel (FAP) 120RH, make sure that the EMER button and its light are off.

Subtask 33-51-00-860-081-F ** ON A/C NOT FOR ALL

A. Preparation for Test
(1) On overhead panel 25VU, make sure that EMER EXIT LT switch 4WL is in the OFF position.
(2) On overhead panel 25VU, make sure that No PED switch 190RH is in the OFF position.
(3) On Flight Attendant Panel (FAP) 120RH, make sure that the EMER pushbutton switch and its integral light are off.

Subtask 33-51-00-710-053-A ** ON A/C NOT FOR ALL

B. Test of both Control Panels and the Emergency Lighting System
(1) For the locations of the emergency lights, refer to (Ref. AMM D/O 33-51-00-00).
(2) Do this test.

ACTION	RESULT
1.In the cockpit, on the SIGNS panel 25VU: Set the EMER EXIT LT switch 4WL to the ON position.	In the cockpit, on the SIGNS panel 25VU: The EMER EXIT LT OFF annunciator 5WL goes off.
	In the cabin: The signs and the lights of the emergency lighting system come on.
2.On the SIGNS panel 25VU: Set the EMER EXIT LT switch 4WL to the OFF position.	On the SIGNS panel 25VU: The EMER EXIT LT OFF annunciator 5WL comes on.
	In the cabin: The signs and the lights of the emergency lighting system go off.
3.On the FAP 120RH: Push the LIGHT EMER pushbutton switch.	On the FAP 120RH: The red light of the LIGHT EMER pushbutton switch comes on.
	In the cabin: The signs and the lights of the emergency lighting system come on.
4.On the FAP 120RH: Push the LIGHT EMER pushbutton switch.	On the FAP 120RH: The red light of the LIGHT EMER pushbutton switch goes off.
	In the cabin: The signs and the lights of the emergency lighting system go off.

Subtask 33-51-00-710-053-C ** ON A/C NOT FOR ALL

B. Test of the two Control Panels and the Emergency Lighting System
(1) For the locations of the emergency lights, refer to (Ref. AMM D/O 33-51-00-00).
(2) Do this test.

ACTION	RESULT
1.In the cockpit, on the SIGNS panel 25VU: set the EMER EXIT LT switch 4WL to the ON position.	In the cockpit, on the SIGNS panel 25VU: the EMER EXIT LT OFF annunciator 5WL goes off.
	In the cabin: the signs and lights of the emergency lighting system come on.
2.On the SIGNS panel 25VU: set the EMER EXIT LT switch 4WL to the OFF position.	On the SIGNS panel 25VU: the EMER EXIT LT OFF annunciator 5WL comes on.
	In the cabin: the signs and lights of the emergency lighting system go off.
3.On the FAP 120RH: push the LIGHT EMER pushbutton switch.	On the FAP 120RH: the red integral light of the LIGHT EMER pushbutton switch comes on.
	In the cabin: the signs and lights of the emergency lighting system come on.
4.On the FAP 120RH: push the LIGHT EMER pushbutton switch.	On the FAP 120RH: the red integral light of the LIGHT EMER pushbutton switch goes off.
	In the cabin: the signs and lights of the emergency lighting system go off.

Subtask 33-51-00-710-053-F ** ON A/C NOT FOR ALL

B. Operational Test
(1) For the locations of the emergency lights, refer to (Ref. AMM D/O 33-51-00-00).
(2) Do this test of both control panels and the emergency lighting system:

ACTION	RESULT
1.In the cockpit, on SIGNS panel 25VU: Set EMER EXIT LT switch 4WL to the ON position.	In the cockpit, on SIGNS panel 25VU: EMER EXIT LT OFF annunciator 5WL goes off.
	In the cabin: The signs and the lights of the emergency lighting system come on.
2.On SIGNS panel 25VU: Set EMER EXIT LT switch 4WL to the OFF position.	On SIGNS panel 25VU: EMER EXIT LT OFF annunciator 5WL comes on.
	In the cabin: The signs and the lights of the emergency lighting system go off.
3.On FAP 120RH: Push the EMER pushbutton switch.	On FAP 120RH: The light of the EMER pushbutton switch comes on.
	In the cabin: The signs and the lights of the emergency lighting system come on.
4.On FAP 120RH: Push the EMER pushbutton switch.	On FAP 120RH: The light of the EMER pushbutton switch goes off.
	In the cabin: The signs and the lights of the emergency lighting system go off.

Subtask 33-51-00-710-053-H ** ON A/C NOT FOR ALL

B. Operational Test
(1) For the locations of the emergency lights, refer to (Ref. AMM D/O 33-51-00-00).
(2) Do this test of the two control panels and the emergency lighting system:

ACTION	RESULT
1.In the cockpit, on SIGNS panel 25VU: Set EMER EXIT LT switch 4WL to the ON position.	In the cockpit, on SIGNS panel 25VU: EMER EXIT LT OFF annunciator 5WL goes off.
	In the cabin: The signs and lights of the emergency lighting system come on.
2.On SIGNS panel 25VU: Set EMER EXIT LT switch 4WL to the OFF position.	On SIGNS panel 25VU: EMER EXIT LT OFF annunciator 5WL comes on.
	In the cabin: The signs and lights of the emergency lighting system go off.
3.On FAP 120RH: Push the EMER pushbutton switch.	On FAP 120RH: The integral light of the EMER pushbutton switch comes on.
	In the cabin: The signs and lights of the emergency lighting system come on.
4.On FAP 120RH: Push the EMER pushbutton switch.	On FAP 120RH: The integral light of the EMER pushbutton switch goes off.
	In the cabin: The signs and lights of the emergency lighting system go off.

Subtask 33-51-00-710-057-A ** ON A/C NOT FOR ALL

C. Operational Test
(1) For the locations of the emergency lights, refer to (Ref. AMM D/O 33-51-00-00).
(2) Do this test of both control panels and the emergency lighting system with circuit breakers 1WL and 2WL on circuit breaker panel 49VU:

NOTE: The time to do the test must not be more than 3 minutes. This is to prevent the discharge of the emergency lighting batteries.

ACTION	RESULT
1.In the cockpit, on SIGNS panel 25VU: Set EMER EXIT LT switch 4WL to the ARM position.	In the cockpit, on SIGNS panel 25VU: EMER EXIT LT OFF annunciator 5WL goes off.
2.On circuit breaker panel 49VU: Open circuit breakers 1WL and 2WL.	In the cabin: The emergency lights and signs come on.
Close circuit breakers 1WL and 2WL.	The emergency lights and signs go off.
3.On SIGNS panel 25VU: Set EMER EXIT LT switch 4WL to the OFF position.	On SIGNS panel 25VU: EMER EXIT LT OFF annunciator 5WL comes on.

Subtask 33-51-00-710-057-D ** ON A/C NOT FOR ALL

C. Test of the two Control Panels and the Emergency Lighting System

NOTE: The time to do the test must not be more than 3 minutes to prevent discharge of the emergency lighting batteries.

(1) For the locations of the emergency lights, refer to (Ref. AMM D/O 33-51-00-00).
(2) Do this test with the circuit breakers 1WL and 2WL on the circuit breaker panel 49VU.

ACTION	RESULT
1.In the cockpit, on the SIGNS panel 25VU: Set the EMER EXIT LT switch 4WL to the ARM position.	In the cockpit, on the SIGNS panel 25VU: The EMER EXIT LT OFF annunciator 5WL goes off.
2.On the circuit breaker panel 49VU: Open the circuit breakers 1WL and 2WL.	In the cabin: All cabin emergency lights come on. All exit marking signs come on. All exit location signs come on. All escape hatch-handle lights come on. All wall-mounted exit-marking signs come on.
Close the circuit breakers 1WL and 2WL.	All cabin emergency lights go off. All exit marking signs go off. All exit location signs go off. All escape hatch-handle lights go off. All wall-mounted exit-marking signs go off.
3.On the SIGNS panel 25VU: Set the EMER EXIT LT switch 4WL to the OFF position.	On the SIGNS panel 25VU: The EMER EXIT LT OFF annunciator 5WL comes on.

5. Close-up
Subtask 33-51-00-862-053-A

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

[Rev.10 from 2021] 2026.04.01 08:26:20 UTC