Operational Test of the Emergency Evacuation (EVAC) Signaling System

TASK 23-73-00-710-004-A
Operational Test of the Emergency Evacuation (EVAC) Signaling System

ZONE: 200

1. Reason for the Job
This procedure gives the instructions necessary to make sure that the EVAC signaling system operates correctly.
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 23-73-00-861-001-A	Energize the Cabin Intercommunication Data System (CIDS)
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 33-14-00-710-001-A	Operational Check of the Light Test System

3. Job Set-up
Subtask 23-73-00-860-074-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that the Cabin Intercommunication Data System (CIDS) is energized
(Ref. AMM TASK 23-73-00-861-001).
(3) Energize the annunciator light test and dimming system
(Ref. AMM TASK 33-14-00-710-001).
(4) Make sure that at least one cabin door is open.

4. Procedure
Subtask 23-73-00-710-171-I ** ON A/C NOT FOR ALL

A. Test

ACTION	RESULT
1.In the cockpit, on the overhead panel 21VU:
Switch the EVAC/CAPT&PURS/CAPT switch to the CAPT&PURS position.
2.In the cockpit, on overhead panel 21VU:	In the cockpit, on overhead panel 21VU:
Lift the guard and push the EVAC COMMAND pushbutton switch.	The EVAC indicator light flashes.
	The ON indicator light comes on.
	On the Flight Attendant Panel (FAP): The integral light in the EVAC RESET pushbutton flashes.
	On the Additional Attendant Panel (AAP): The integral light in the EVAC pushbutton flashes.
	On all Attendant Indication Panels (AIP): The pink indicator flashes.
	The message "EVACUATION ALERT" comes on.
	At all attendant stations: You hear the EVAC signal.
3.On the FAP:	On the forward AIP:
Push the EVAC RESET pushbutton.	The message "EVACUATION ALERT" goes off.
	The pink indicator goes off.
	At the forward attendant station: The EVAC signal goes off.
4.On the AAP:	On the aft AIPs:
Push the EVAC RESET pushbutton.	The message "EVACUATION ALERT" goes off.
	The pink indicator goes off.
	At the aft attendant stations: The EVAC signal goes off.
5.In the cockpit, on overhead panel 21VU:	In the cockpit, on overhead panel 21VU:
Lift the guard and push the EVAC COMMAND pushbutton switch to reset it.	The EVAC indicator light goes off.
	The ON indicator light goes off.
	On the FAP: The integral light in the EVAC RESET pushbutton goes off.
	On the AAP: The integral light in the EVAC pushbutton goes off.
6.On the FAP:	On the FAP:
Push the EVAC CMD pushbutton.	The integral light in the EVAC CMD pushbutton comes on.
	The integral light in the EVAC RESET pushbutton flashes.
	On the AAP: The integral light in the EVAC pushbutton flashes.
	In the cockpit, on the overhead panel 21VU: The EVAC indicator light in the COMMAND pushbutton switch comes on.
	In the cockpit: You hear the EVAC signal.
	At all attendant stations: You hear the EVAC signal.
	On all AIPs:
	The pink indicator flashes.
	The message "EVACUATION ALERT" comes on.
7.On the FAP:	On the FAP:
Push the EVAC CMD pushbutton to reset it.	The integral light in the EVAC CMD pushbutton goes off.
	The integral light in the EVAC RESET pushbutton goes off.
	In the cockpit, on overhead panel 21VU: The EVAC indicator light in the COMMAND pushbutton switch goes off.
	In the cockpit: The EVAC signal goes off.
	At the forward attendant station: The EVAC signal goes off.
	On the forward AIP: The message "EVACUATION ALERT" goes off.
	The pink indicator goes off.
8.Repeat test steps 6 and 7 for the AAP.	Same results as in test steps 6 and 7.
9.In the cockpit, on overhead panel 21VU:
Switch the EVAC/CAPT&PURS/CAPT switch to the CAPT position.
10.On the FAP:	On the FAP:
Push the EVAC CMD pushbutton.	The integral light in the EVAC CMD pushbutton comes on.
	In the cockpit: You hear the EVAC signal for approx. 3 sec.
11.On the FAP:	On the FAP:
Push the EVAC CMD pushbutton to reset it.	The integral light in the EVAC CMD pushbutton goes off.
	In the cockpit, on the overhead panel 21VU: The EVAC indicator light in the COMMAND pushbutton switch goes off.

Subtask 23-73-00-710-171-J ** ON A/C NOT FOR ALL

A. Test

ACTION	RESULT
1.In the cockpit, on overhead panel 21VU:
Set the EVAC/CAPT&PURS/CAPT switch to the CAPT&PURS position.
2.In the cockpit, on overhead panel 21VU:	In the cockpit, on overhead panel 21VU:
Lift the guard, push and release the EVAC COMMAND pushbutton switch.	The EVAC indicator light in the COMMAND pushbutton switch flashes.
	The ON indicator light in the COMMAND pushbutton switch comes on.
	On Flight Attendant Panel (FAP):
	The integral light in the EVAC / RESET pushbutton switch flashes.
	On Additional Attendant Panel (AAP):
	The integral light in the EVAC pushbutton switch flashes.
	On Attendant Indication Panels (AIP):
	The pink indicator light flashes.
	The message EVACUATION ALERT comes on.
	Through the loudspeakers at the attendant stations:
	You hear the EVAC signal.
3.On FAP:	On forward AIP:
Push and release the EVAC / RESET pushbutton switch.	The message EVACUATION ALERT goes off.
	The pink indicator goes off.
	Through the loudspeakers at the forward attendant station:
	The EVAC signal goes off.
4.On AAP:	On aft AIPs:
Push and release the EVAC / RESET pushbutton switch.	The message EVACUATION ALERT goes off.
	The pink indicator goes off.
	Through the loudspeakers at the aft attendant station:
	The EVAC signal goes off.
5.In the cockpit, on overhead panel 21VU:	In the cockpit, on overhead panel 21VU:
Lift the guard, push and release the EVAC COMMAND pushbutton switch to reset it.	The EVAC indicator light in the COMMAND pushbutton switch goes off.
	The ON indicator light in the COMMAND pushbutton switch goes off.
	On FAP:
	The EVAC/RESET indicator light goes off.
	On AAP:
	The EVAC indicator light goes off.
6.On FAP:	On FAP:
Push and release the EVAC CMD pushbutton switch.	The integral light in the EVAC CMD pushbutton switch comes on. The integral light in the EVAC / RESET pushbutton switch flashes.
	On AAP:
	The integral light in the EVAC pushbutton switch flashes.
	In the cockpit, on overhead panel 21VU:
	The EVAC indicator light in the COMMAND pushbutton switch comes on.
	In the cockpit:
	You hear the EVAC signal.
	Through the loudspeakers at the attendant stations:
	You hear the EVAC signal.
	On AIPs:
	The pink indicator light flashes.
	The message EVACUATION ALERT comes on.
7.On FAP:	On FAP:
Push and release the EVAC CMD pushbutton switch to reset it.	The integral light in the EVAC CMD pushbutton switch goes off. The integral light in the EVAC / RESET pushbutton switch goes off.
	In the cockpit, on overhead panel 21VU:
	The EVAC indicator light in the COMMAND pushbutton switch goes off.
	In the cockpit:
	The EVAC signal goes off.
	Through the loudspeakers at the forward attendant station:
	The EVAC signal goes off.
	On forward AIP:
	The message EVACUATION ALERT goes off.
	The pink indicator goes off.
8.In the cockpit, on overhead panel 21VU:
Set the EVAC/CAPT&PURS/CAPT switch to the CAPT position.
9.On FAP:	On FAP:
Push and release the EVAC CMD pushbutton switch.	The integral light in the EVAC CMD pushbutton switch comes on.
	In the cockpit:
	You hear the EVAC signal for approx. 3 sec.
10.On FAP:	On FAP:
Push and release the EVAC CMD pushbutton switch to reset it.	The integral light in the EVAC CMD pushbutton switch goes off.
	In the cockpit, on overhead panel 21VU:
	The EVAC indicator light in the COMMAND pushbutton switch goes off.

5. Close-up
Subtask 23-73-00-860-075-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)

[Rev.10 from 2021] 2026.04.01 05:37:35 UTC