Operational Test of the Cabin/Cockpit Incident Alert System

TASK 23-73-00-710-040-A
Operational Test of the Cabin/Cockpit Incident Alert System

ZONE: 200

1. Reason for the Job
Refer to the MPD TASK: 234300-01
OPERATIONAL CHECK OF CABIN / COCKPIT INCIDENT ALERT SYSTEM
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

C. 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 23-73-00-860-175-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.

Subtask 23-73-00-865-192-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM NAV/ATC/1	5SH1	G11

Subtask 23-73-00-865-191-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	LIGHTING/XFMR/115V.5V/ESS BUS	29LP	H03
122VU	LIGHTING/TST/BOARD/SPLY	30LP	X06

4. Procedure
Subtask 23-73-00-710-311-B ** ON A/C NOT FOR ALL

A. Do the operational test of the Cabin Incident Alert System

ACTION	RESULT
1.In the doorframe lining of door 1, on the switch panel 2080VU:	In the cockpit, on the pedestal panel 119VU:
push the ALERT pushbutton.	the indicator light of the CAB ALERT pushbutton comes on.
	In the cockpit:
	you hear a steady high tone.
	On the forward left Attendant Indication Panel (AIP) 320RH:
	the pink indicator light comes on and goes off after 1 sec.
	the message CABIN ALERT shows and goes off after 1 sec.
2.In the cockpit, on the pedestal panel 119VU:	In the cockpit, on the pedestal panel 119VU:
push the CAB ALERT pushbutton.	the indicator light of the CAB ALERT pushbutton goes off.
	In the cockpit:
	the steady high tone stops.
3.In the doorframe lining of door x, on the switch panel 2080VU:	In the doorframe lining of door x, on the switch panel 2080VU:
repeat this test.	all visual and acoustic indications are the same as in the test for the Alert pushbutton in the doorframe lining of door 1.

Subtask 23-73-00-710-314-B ** ON A/C NOT FOR ALL

B. Do the operational test of the Cockpit Incident Alert System

ACTION	RESULT
1.In the cockpit on the captain's side, on the panel 619VU:	On all Attendant Indication Panels (AIP) 320RH/322RH:
push the COCKPIT ALERT pushbutton.	the message COCKPIT ALERT shows and goes off after 30 sec.
	the pink indicator light flashes and goes off after 30 sec.
	On all Area Call Panels (ACP) 340RH:
	the amber and pink indicator lights flash and go off after 30 sec.
	In the cabin and at all attendant stations:
	you hear a HI-chime four times.
2.In the cockpit on the first officer's side, on the panel 620VU:	In the cockpit on the first officer's side, on the panel 620VU:
repeat this test.	all visual and acoustic indications are the same as in the test for the COCKPIT ALERT pushbutton on the captain's side.

5. Close-up
Subtask 23-73-00-865-193-A ** ON A/C NOT FOR ALL

A. 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
49VU	COM NAV/ATC/1	5SH1	G11

Subtask 23-73-00-860-176-A ** ON A/C NOT FOR ALL

B. 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 05:38:23 UTC