Operational Test of the Cabin and Flight Crew Interphone System

TASK 23-73-00-710-021-A
Operational Test of the Cabin and Flight Crew Interphone System

1. Reason for the Job
This procedure gives the instructions necessary to make sure that the cabin interphone system operates correctly.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	HEADSET 600 OHMS

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 23-73-00-860-115-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 the INT/RAD switch on the Audio Control Panel (ACP) is in the center position.
(5) Make sure that the INTEG LT/MAIN PNL&PED rotary knob on the pedestal panel 111VU is in the BRT position.
(6) Connect a HEADSET 600 OHMS to the captain jack panel 61VU.

NOTE: The annunciation indication and the communication is cancelled, if there are more than 60 sec. between the test procedure steps.

4. Procedure
Subtask 23-73-00-710-231-B ** ON A/C NOT FOR ALL

A. Do the test of the EMERGENCY call from the cockpit

ACTION	RESULT
1.In the cockpit, on the overhead panel 21VU:	In the cockpit, on the overhead panel 21VU:
push the EMER pushbutton.	the indicator light of the EMER pushbutton comes on.
	On the audio control panel 11VU:
	the ATT light flashes.
	In the cabin and at all attendant stations:
	you hear a HI-LO chime three times.
	On all Area Call Panels (ACP):
	the pink lights flash.
	On all Attendant Indication Panels (AIP):
	the pink indicator light flashes.
	the message EMERGENCY CALL flashes.
2.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch in the RAD position during the test-procedure.
3.In the cockpit and at all attendant stations:	On all ACPs:
lift the handset from the cradle.	the pink lights go off.
4.In the cockpit and at all attendant stations:	In the cockpit and at all attendant stations:
make an announcement.	you hear the announcement.
5.In the cockpit and at all attendant stations:	On all AIPs:
put the handset back in the cradle.	the pink light goes off.
	the message EMERGENCY CALL goes off.
	On the cockpit overhead panel 21VU:
	the indicator light of the EMER pushbutton goes off.
6.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-232-B ** ON A/C NOT FOR ALL

B. Do the test of the ALL call from the cockpit.

ACTION	RESULT
1.On the cockpit overhead panel 21VU:	On all Area Call Panels (ACP):
push the ALL pushbutton.	the pink lights come on.
	On all Attendant Indication Panels (AIP):
	the green light comes on.
	the message CAPTAIN CALL comes on.
	At all ATTND stations:
	you hear a HI-LO chime.
2.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch in the RAD position.
3.At all ATTND stations:	On all ACPs:
lift the handset from the cradle.	the pink lights go off.
	On all AIPs:
	the green light goes off.
4.Through all ATTND station handsets and the cockpit boomset:	Through all ATTND station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
5.At all ATTND stations:	On all AIPs:
put the handset back in the cradle.	the message CAPTAIN CALL goes off.
6.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob and turn it fully cw.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-231-D ** ON A/C NOT FOR ALL

C. Do the test of the EMERGENCY call from the cockpit.

ACTION	RESULT
1.In the cockpit, on the overhead panel 21VU:	In the cockpit, on the overhead panel 21VU:
push the EMER pushbutton switch.	the CALL ON indicator light in the EMER pushbutton switch flashes.

	In the cabin and at all attendant stations:
	you hear three HI-LO chimes.

	On all Area Call Panels (ACP) 340RH:
	the pink indicator lights flash.

	On all Attendant Indication Panels (AIP) 320RH/322RH:
	'CALL EMERGENCY' flashes.
	the pink indicator light flashes.

	In the cockpit, on the audio control panel:
	the ATT indication flashes.
2.In the cockpit, on the audio control panel:	In the cockpit, on the overhead panel 21VU:
push the RESET pushbutton.	the CALL ON indicator light in the EMER pushbutton switch goes off.

	In the cockpit, on the audio control panel:
	the ATT indication goes off.
3.At the forward attendant station:	On the forward left AIP:
lift the handset from the cradle.	'> EMERGENCY' shows.
	the pink indicator light goes off.
4.In the cockpit, on the audio control panel:	In the cockpit, on the audio control panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch to the RAD position.
5.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
6.At the mid attendant station:	On the mid AIP:
lift the handset from the cradle.	'> EMERGENCY' shows.
	the pink indicator light goes off.
7.Through the forward and mid attendant-station handsets and the cockpit boomset:	Through the forward and mid attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
8.At the forward attendant station:	On the forward left AIP:
put the handset back in the cradle.	'> EMERGENCY' goes off.
9.Through the mid attendant-station handset and the cockpit boomset:	Through the mid attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
10.At the exit attendant station:	On the exit AIP:
lift the handset from the cradle.	'> EMERGENCY' shows.
	the pink indicator light goes off.
11.Through the mid and exit attendant-station handsets and the cockpit boomset:	Through the mid and exit attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
12.At the mid attendant station:	On the mid AIP:
put the handset back in the cradle.	'> EMERGENCY' goes off.
13.Through the exit attendant-station handset and the cockpit boomset:	Through the exit attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
14.At the aft left attendant station:	On the aft left AIP:
lift the handset from the cradle.	'> EMERGENCY' shows.
	the pink indicator light goes off.
15.Through the exit and aft left attendant-station handsets and the cockpit boomset:	Through the exit and aft left attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
16.At the exit attendant station:	On the exit AIP:
put the handset back in the cradle.	'> EMERGENCY' goes off.
17.Through the aft left attendant-station handset and the cockpit boomset:	Through the aft left attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
18.At the aft right attendant station:	On the aft right AIP:
lift the handset from the cradle.	'> EMERGENCY' shows.
	the pink indicator light goes off.
19.Through the aft attendant-station handsets and the cockpit boomset:	Through the aft attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
20.At the aft left station:	On the aft left AIP:
put the handset back in the cradle.	'> EMERGENCY' goes off.
21.Through the aft right attendant-station handset and the cockpit boomset:	Through the aft right attendant-station handset and the cockpit boomset::
make an announcement.	you hear the announcement.
22.In the cockpit, on the audio control panel:	In the cockpit, on the audio control panel:
release the RAD/INT switch.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-232-G ** ON A/C NOT FOR ALL

D. Do the test of the ALL attendant call function from the cockpit

ACTION	RESULT
1.In the cockpit, on the audio control panel:	In the cockpit, on the audio control panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
2.In the cockpit, on the overhead panel 21VU:	At all attendant stations:
push the ALL pushbutton.	you hear a single HI-LO chime.

	On all Area Call Panels (ACP) 340RH:
	the pink indicator lights come on.

	On all Attendant Indication Panels (AIP) 320RH/322RH:
	'CALL ALL ATTND' shows.
	the green indicator light comes on.
3.At the forward attendant station:	On the forward left AIP:
lift the handset from the cradle.	'> ALL ATTND' shows.
	the green indicator light goes off.
4.In the cockpit, on the audio control panel:
push and hold the INT/RAD switch in the RAD position.
5.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
6.At the mid attendant station:	On the mid AIP:
lift the handset from the cradle.	'> ALL ATTND' shows.
	the green indicator goes off.
7.Through the forward and mid attendant-station handsets and the cockpit boomset:	Through the forward and mid attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
8.At the forward attendant station:	On the forward left AIP:
put the handset back in the cradle.	'> ALL ATTND' goes off.
9.Through the mid attendant-station handset and the cockpit boomset:	Through the mid attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
10.At the exit attendant station:	On the exit AIP:
lift the handset from the cradle.	'> ALL ATTND' shows.
	the green indicator light goes off.
11.Through the mid and exit attendant-station handsets and the cockpit boomset:	Through the mid and exit attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
12.At the mid attendant station:	On the mid AIP:
put the handset back in the cradle.	'> ALL ATTND' goes off.
13.Through the exit attendant-station handset and the cockpit boomset:	Through the exit attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
14.At the aft left attendant station:	On the aft left AIP:
lift the handset from the cradle.	'> ALL ATTND' shows.
	the green indicator light goes off.
15.Through the exit and aft left attendant-station handsets and the cockpit boomset:	Through the exit and aft left attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
16.At the exit attendant station:	On the exit AIP:
put the handset back in the cradle.	'> ALL ATTND' goes off.
17.Through the aft left attendant-station handset and the cockpit boomset:	Through the aft left attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
18.At the aft right attendant station:	On the aft right AIP:
lift the handset from the cradle.	'> ALL ATTND' shows.
	the green indicator light goes off.
19.Through the aft attendant-station handsets and the cockpit boomset:	Through the aft attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
20.At the aft left attendant station:	On the aft left AIP:
put the handset back in the cradle.	'> ALL ATTND' goes off.
21.Through the aft right attendant-station handset and the cockpit boomset:	Through the aft right attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
22.At the aft right attendant station:	On the aft right AIP:
put the handset back in the cradle.	'> ALL ATTND' goes off.

	On all ACPs:
	the pink indicator lights go off.
23.In the cockpit, on the audio control panel:	release the INT/RAD switch.
24.In the cockpit, on the audio control panel:	In the cockpit, on the audio control panel:
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-233-D ** ON A/C NOT FOR ALL

E. Do the test of the Forward Attendant CALL from the cockpit.

ACTION	RESULT
1.On the cockpit overhead panel 21VU:	On the forward left and right ACPs 340RH:
push the CALLS FWD pushbutton switch.	the pink lights come on.
	On the forward AIP 320RH:
	the green light comes on.
	the message CALL CAPTAIN comes on.
	At all attendant stations:
	you hear a single HI-LO chime.
2.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch to the RAD position.
3.At the forward attendant Station:	On the forward left and right ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the forward AIP 320RH:
	the green light goes off.
	the message CALL CAPTAIN changes to CAPTAIN.
4.Through the cockpit boomset and the handset at the forward attendant station:	Through the cockpit boomset and the handset at the forward attendant station:
make an announcement.	you hear the announcement.
5.At the forward attendant station:	On the forward AIP 320RH:
put the handset back to the cradle.	the CAPTAIN message goes off.
6.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob and turn it fully ccw.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-270-B ** ON A/C NOT FOR ALL

F. Do the test of the MID ATTND CALL from the cockpit.

ACTION	RESULT
1.On the cockpit overhead panel 21VU:	On the MID ACPs 340RH:
push the CALLS MID pushbutton switch.	the pink lights come on.
	On the MID AIP 320RH:
	the green light comes on.
	the message CALL CAPTAIN comes on.
	At all ATTND stations:
	you hear a single HI-LO chime.
2.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch to the RAD position.
3.At the MID attendant Station:	On the MID ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the MID AIP 320RH:
	the green light goes off.
	the message CALL CAPTAIN changes to CAPTAIN.
4.Through the cockpit boomset and the handset at the MID attendant station:	Through the cockpit boomset and the handset at the MID attendant station:
make an announcement.	you hear the announcement.
5.At the MID attendant station:	On the MID AIP 320RH:
put the handset back to the cradle.	the CAPTAIN message goes off.
6.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob and turn it fully ccw.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-271-H ** ON A/C NOT FOR ALL

G. Do the test of the EXIT ATTND CALL from the cockpit.

ACTION	RESULT
1.On the cockpit overhead panel 21VU:	On the EXIT ACPs 340RH:
push the CALLS EXIT pushbutton switch.	the pink light comes on.
	On the EXIT AIP 320RH:
	the green light comes on.
	the message CALL CAPTAIN comes on.
	At all ATTND stations:
	a single HI-LO chime is heard.
2.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch to the RAD position.
3.At the EXIT ATTND Station:	On the EXIT ACPs 340RH:
lift the handset from the cradle.	the pink light goes off.
	On the EXIT AIP 320RH:
	the green light goes off.
	the message CALL CAPTAIN changes to CAPTAIN.
4.In the cockpit with the boomset and at the EXIT ATTND station:	In the cockpit in the boomset and at the EXIT ATTND station:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the EXIT ATTND station:	On the EXIT AIP 320RH:
put the handset back to the cradle.	the CAPTAIN message goes off.
6.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob and turn it fully ccw.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-272-H ** ON A/C NOT FOR ALL

H. Do the test of the AFT ATTND CALL from the cockpit.

ACTION	RESULT
1.On the cockpit overhead panel 21VU:	On the AFT ACPs 340RH:
push the CALLS AFT pushbutton switch.	the pink light comes on.
	On the AFT AIPs 320RH:
	the green light comes on.
	the message CALL CAPTAIN comes on.
	At all ATTND stations:
	a single HI-LO chime is heard.
2.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch to the RAD position.
3.At the AFT LH ATTND station:	On the AFT ACPs 340RH:
lift the handset from the cradle.	the pink light goes off.
	On the AFT AIPs 320RH:
	the green light goes off.
	the message CALL CAPTAIN changes to CAPTAIN.
4.In the cockpit with the boomset and at the AFT LH ATTND station:	In the cockpit in the boomset and the EXIT ATTND station:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the AFT LH ATTND station:	On the AFT AIPs 320RH:
put the handset back to the cradle.	the CAPTAIN message goes off.
6.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob and turn it fully ccw.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.
7.Repeat the test with the AFT RH ATTND station.	The results are the same as in the test with the AFT LH ATTND station.

Subtask 23-73-00-710-233-N ** ON A/C NOT FOR ALL

I. Do the test of the FORWARD ATTENDANT CALL from the cockpit.

ACTION	RESULT
1.On the CALLS panel 21VU in the cockpit:	At all attendant stations:
push the FWD pushbutton.	you hear a single HI-LO chime.
	On the forward AIP 320RH:
	the message CALL CAPTAIN comes on,
	the green indicator comes on.
	On the forward ACPs:
	the pink indicators come on.
2.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
3.At the forward attendant station:	On the forward AIP:
lift the handset from the cradle.	the message > CAPTAIN comes on.
	the green indicator goes off.
	On the forward ACPs:
	the pink indicators go off.
4.On the audio control panel in the cockpit:
push and hold the RAD/INT switch in the RAD position.
5.Through the handset at the forward attendant-station and the cockpit boomset:	Through the handset at the forward attendant-station and the cockpit boomset:
make an announcement.	you hear the announcement.
6.At the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > CAPTAIN goes off.
7.On the audio control panel in the cockpit: release the RAD/INT switch.
On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-270-L ** ON A/C NOT FOR ALL

J. Do the test of the MID attendant call from the cockpit.

ACTION	RESULT
1.On the CALLS panel 21VU in the cockpit:	Through the loudspeakers at all attendant stations:
push the MID pushbutton.	you hear a HI-LO chime.
	On the mid AIP:
	the message CALL CAPTAIN comes on,
	the green indicator comes on.
	On the mid ACPs:
	the pink indicators come on.
2.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the CAB pushbutton switch.	the CAB pushbutton-switch integral light comes on.
push the CAB rotary knob.	the CAB rotary-knob integral light comes on.
turn the CAB rotary knob fully cw.
3.At the mid attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > CAPTAIN comes on.
	the green indicator goes off.
	On the mid ACPs:
	the pink indicators go off.
4.On the audio control panel in the cockpit:
push and hold the RAD/INT switch in the RAD position.
5.Through the handset at the mid attendant station and the cockpit boomset:	Through the handset at the mid attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
6.At the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the message > CAPTAIN goes off.
7.On the audio control panel in the cockpit: release the RAD/INT switch.
On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push to release the CAB rotary knob.	the CAB rotary-knob integral light goes off.
push to release the CAB pushbutton switch.	the CAB pushbutton-switch integral light goes off.

Subtask 23-73-00-710-271-P ** ON A/C NOT FOR ALL

K. Do the test of the EXIT attendant from the cockpit.

ACTION	RESULT
1.On the CALLS panel 21VU in the cockpit:	Through the loudspeakers at all attendant stations:
push the EXIT pushbutton.	you hear a HI-LO chime.
	On the exit AIP:
	the message CALL CAPTAIN comes on,
	the green indicator comes on.
	On the exit ACPs:
	the pink indicators come on.
2.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the CAB pushbutton switch.	the CAB pushbutton-switch integral light comes on.
push the CAB rotary knob.	the CAB rotary-knob integral light comes on.
turn the CAB rotary knob fully cw.
3.At the exit attendant station:	On the exit AIP:
lift the handset from the cradle.	the message > CAPTAIN comes on.
	the green indicator goes off.
	On the exit ACPs:
	the pink indicators go off.
4.On the audio control panel in the cockpit:
push and hold the RAD/INT switch in the RAD position.
5.Through the handset at the exit attendant station and the cockpit boomset:	Through the handset at the exit attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
6.At the exit attendant station:	On the exit AIP:
put the handset back into its cradle.	the message > CAPTAIN goes off.
7.On the audio control panel in the cockpit: release the RAD/INT switch.
On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push to release the CAB rotary knob.	the CAB rotary-knob integral light goes off.
push to release the CAB pushbutton switch.	the CAB pushbutton-switch integral light goes off.

Subtask 23-73-00-710-272-O ** ON A/C NOT FOR ALL

L. Do the test of the AFT attendant call from the cockpit.

ACTION	RESULT
1.On the CALLS panel 21VU in the cockpit:	Through the loudspeakers at all attendant stations:
push the AFT pushbutton.	you hear a HI-LO chime.
	On the aft Attendant Indication Panels (AIPs):
	the message CALL CAPTAIN comes on.
	the green indicator light comes on.
	On the aft Area Call Panels (ACPs):
	the pink indicator lights come on.
2.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the CAB pushbutton switch.	the CAB pushbutton-switch integral light comes on.
push the CAB rotary knob.	the CAB rotary-knob integral light comes on.
turn the CAB rotary knob fully cw.
3.At the aft left attendant station:	On the aft right AIP:
lift the handset from the cradle.	the message CALL CAPTAIN goes off.
	the green indicator light goes off.
	On the aft left AIP: the message > CAPTAIN comes on. the green indicator light goes off.
	On the aft ACPs:
	the pink indicator lights go off.
4.On the audio control panel in the cockpit:
push and hold the RAD/INT switch in the RAD position.
5.Through the handset at the aft left attendant station and the cockpit boomset:	Through the handset at the aft left attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
6.At the aft left attendant station:	On the aft left AIP:
put the handset back into its cradle.	the message > CAPTAIN goes off.
7.On the audio control panel in the cockpit:
release the RAD/INT switch.
8.On the CALLS panel 21VU in the cockpit:	Through the loudspeakers at all attendant stations:
push the AFT pushbutton.	you hear a HI-LO chime.
	On the aft right AIPs:
	the message CALL CAPTAIN comes on.
	the green indicator light comes on.
	On the aft ACPs:
	the pink indicator lights come on.
9.At the aft right attendant station:	On the aft left AIP:
lift the handset from the cradle.	the message CALL CAPTAIN goes off.
	the green indicator light goes off.
	On the aft right AIP:
	the message > CAPTAIN comes on.
	the green indicator light goes off.
	On the aft right ACPs:
	the pink indicator lights go off.
10.On the audio control panel in the cockpit:
hold the RAD/INT switch in the RAD position.
11.Through the handset at the aft right attendant station and the cockpit boomset:	Through the handset at the aft right attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
12.At the aft right attendant station:	On the aft right AIP:
put the handset back into its cradle.	the message > CAPTAIN goes off.
13.On the audio control panel in the cockpit:
release the RAD/INT switch.
On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push to release the CAB rotary knob.	the CAB rotary-knob integral light goes off.
push to release the CAB pushbutton switch.	the CAB pushbutton-switch integral light goes off.

Subtask 23-73-00-710-268-A ** ON A/C NOT FOR ALL

M. Test of the Emergency Call from the Forward Attendant station

ACTION	RESULT
1.At the forward attendant station:	On the forward AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the forward AIP 320RH:
push the EMER CALL pushbutton switch.	'#' goes off.
	the message EMERGENCY CALL flashes.
	On the cockpit overhead panel 21VU:
	the indicator light of the EMER CALL ON pushbutton-switch flashes.
	On the audio selector panels:
	the ATT indications flash.
	In the cockpit:
	the crew CALL BUZZER sounds 3 times for approx. 1 Sec.
3.On the CAPT audio selector panel:	On the audio selector panels:
push the RESET pushbutton switch.	the ATT indications go off.
	On the cockpit overhead panel 21VU:
	the indicator light of the EMER CALL ON pushbutton switch goes off.
4.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch to the RAD position.
5.Through the cockpit boomset and the handset at the forward attendant station:	Through the cockpit boomset and the handset at the forward attendant station:
make an announcement.	you hear the announcement.
6.At the forward attendant station:	On the forward AIP 320RH:
put the handset back to the cradle.	the message EMERGENCY CALL goes off.
7.On the CAPT audio selector panel:	On the Capt audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-268-B ** ON A/C NOT FOR ALL

M. Do the test of the EMERGENCY call from the forward attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the forward attendant-station handset:	On the forward AIP:
push the EMER CALL pushbutton.	the number symbol goes off,
	the message EMER CALL flashes.
	Through the loudspeakers in the cockpit:
	the BUZZER operates three times.
	On the CALLS panel 21VU in the cockpit:
	the integral light in the EMER pushbutton flashes.
	On the audio control panel in the cockpit:
	the ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indication goes off.
	On the CALLS panel in the cockpit:
	the integral light in the EMER pushbutton goes off.
4.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the CAB pushbutton switch.	the CAB pushbutton-switch integral light comes on.
push the CAB rotary knob.	the CAB rotary-knob integral light comes on.
turn the CAB rotary knob fully cw.
5.On the audio control panel in the cockpit:	On the forward AIP:
push and hold the RAD/INT switch to the RAD position.	the message > EMER CALL comes on.
	Through the earphone of the forward attendant handset:
	the call tone stops.
6.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
7.At the forward attendant station:	On the forward AIP:
put the handset back to the cradle.	the message > EMER CALL goes off.
8.On the Capt audio selector panel:	On the Capt audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob.	the CAB rotary-knob integral light goes off.
push to release the CAB pushbutton switch.	the CAB pushbutton-switch integral light goes off.

Subtask 23-73-00-710-268-C ** ON A/C NOT FOR ALL

M. Do the test of the EMERGENCY call from the forward attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the forward attendant-station handset:	On the forward AIP:
push the EMER CALL pushbutton.	the number symbol goes off.
	the message EMER CALL flashes.
	Through the loudspeakers in the cockpit:
	the BUZZER operates three times.
	On the CALLS panel 21VU in the cockpit:
	the light in the EMER pushbutton flashes.
	On the audio control panel in the cockpit:
	the ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indication goes off.
	On the CALLS panel in the cockpit:
	the light in the EMER pushbutton goes off.
4.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the CAB pushbutton switch.	the light in the CAB pushbutton switch comes on.
push the CAB rotary knob.	the light in the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
5.On the audio control panel in the cockpit:	On the forward AIP:
push and hold the RAD/INT switch to the RAD position.	the message > EMER CALL comes on.
	On the handset at the forward attendant station:
	the call tone stops.
6.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
7.At the forward attendant station:	On the forward AIP:
put the handset back to the cradle.	the message > EMER CALL goes off.
8.On the Capt audio selector panel:	On the Capt audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob.	the light in the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the light in the CAB pushbutton switch goes off.

Subtask 23-73-00-710-269-A ** ON A/C NOT FOR ALL

N. Do the test of the EMERGENCY CALL from the mid, exit, aft left and right attendant stations

(1) The test follows the same procedure as the test of the EMERGENCY CALL from the forward attendant station.

Subtask 23-73-00-710-234-A ** ON A/C NOT FOR ALL

O. Do the test of the CAPT CALL from the Forward Attendant Station.

ACTION	RESULT
1.At the forward attendant station:	On the forward AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the forward AIP 320RH:
push the CAPT pushbutton switch.	the CAPTAIN message comes on.
	In the cockpit:
	the CREW CALL BUZZER is heard for approx. 1 s.
	On the audio selector panels:
	the ATT lights flash.
3.On the CAPT audio selector panel:	On the audio selector panels:
push the RESET pushbutton switch.	the ATT lights go off.
4.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch to the RAD position.	On the forward AIP 320RH:
	'#' goes off.
5.Through the cockpit boomset and the handset at the forward attendant station:	Through the cockpit boomset and the handset at the forward attendant station:
make an announcement.	you hear the announcement.
6.At the forward attendant station:	On the forward AIP 320RH:
put the handset back to the cradle.	the message CAPTAIN goes off.
7.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.
push to release the CAB rotary-knob and turn it fully ccw.	the integral light of the CAB rotary knob goes off.

Subtask 23-73-00-710-234-B ** ON A/C NOT FOR ALL

O. Do the test of the CAPT CALL from the forward attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the CAPT pushbutton.	the number symbol goes off.
	the message CAPTAIN comes on.
	Through the loudspeakers in the cockpit:
	the BUZZER operates for approx. 1 sec.
	On the audio control panel in the cockpit:
	the ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indication goes off.
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
	On the forward AIP:
push and hold the RAD/INT switch in the RAD position.	the message > CAPTAIN comes on.
	On the handset on forward attendant station: the call tone stops.
4.Through the handset at the forward attendant-station and the cockpit boomset:	Through the handset at the forward attendant-station and the cockpit boomset:
make an announcement.	you hear the announcement.
5.At the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > CAPTAIN goes off.
6.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the INT/RAD switch.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-273-A ** ON A/C NOT FOR ALL

P. Do the test of the CAPT Call from the mid, exit, aft left and right attendant stations.
(1) The test follows the same procedure as the Cockpit Call from the forward attendant station.

Subtask 23-73-00-710-235-D ** ON A/C NOT FOR ALL

Q. Test of the ALL CALL from the FWD ATTND Station.

ACTION	RESULT
1.In the cabin at the FWD ATTND Station:	In the cabin on the FWD AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the FWD AIP 320RH:
push the INT pushbutton switch,	'##' comes on.
push the ALL pushbutton switch.	'##' goes off.
	the message ALL comes on.
	On both FWD, both MID, both EXIT and both AFT ACPs 340RH:
	the pink lights come on.
	On the MID, AFT and EXIT AIPs 320RH and 322RH:
	the green light comes on,
	the message CONFERENCE CALL comes on.
	At all ATTND stations:
	a single HI-LO chime is heard.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At all ATTND stations:	On both FWD, MID, EXIT and AFT ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the MID, EXIT and AFT AIPs 320RH and 322RH:
	the green light goes off.
	On the FWD AIP 320RH:
	'#' goes off.
4.At all ATTND stations:	At all ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At all ATTND Stations:	On the FWD AIP 320RH:
put the handset back into its cradle.
the message ALL goes off.	On the MID, EXIT and AFT AIPs 320RH and 322RH:
	the message CONFERENCE CALL goes off.
	On both FWD ACPs 340RH:
	the pink lights go off.

Subtask 23-73-00-710-274-F ** ON A/C NOT FOR ALL

R. Test of the ALL CALL from the MID ATTND Station.

ACTION	RESULT
1.At the MID ATTND Station:	On the MID AIP 322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the MID AIP 322RH:
push the INT pushbutton switch.	'##' comes on.
push the ALL pushbutton switch.	'##' goes off.
	the message ALL comes on.
	On the FWD, EXIT and AFT AIPs 320RH and 322RH:
	the green lights come on.
	On all ACPs 340RH:
	the pink light comes on.
	the message CONFERENCE CALL comes on.
	At all ATTND stations:
	a single HI-LO chime is heard.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At all ATTND stations:	On all ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the FWD, EXIT and AFT AIPs 320RH and 322RH:
	the green light goes off.
	On the MID AIP 320RH:
	'#' goes off.
4.At all ATTND stations:	At all ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At all ATTND stations:	On the MID AIP 322RH:
put the handset back into its cradle.	the message ALL goes off.
	On the FWD, EXIT and AFT AIPs 320RH and 322RH:
	the message CONFERENCE CALL goes off.

Subtask 23-73-00-710-275-F ** ON A/C NOT FOR ALL

S. Test of the ALL CALL from the EXIT ATTND Station.

ACTION	RESULT
1.At the EXIT ATTND Station:	On the EXIT AIP 322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the EXIT AIP 322RH:
push the INT pushbutton switch.	'##' comes on.
push the ALL pushbutton switch.	'##' goes off.
	the message ALL comes on.
	On the FWD, MID and AFT AIPs 320RH and 322RH:
	the green light comes on.

	On all ACPs 340RH: the pink lights come on.
	the message CONFERENCE CALL comes on.
	At all ATTND stations:
	a single HI-LO chime is heard.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At all ATTND stations:	On all ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the FWD, MID and AFT AIPs 320RH and 322RH:
	the green light goes off.
	On the EXIT AIP 322RH:
	'#' goes off.
4.At all ATTND stations:	At all ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At all ATTND stations:	On the EXIT AIP 322RH:
put the handset back into its cradle.	the message ALL goes off.
	On the FWD, MID and AFT AIPs 320RH and 322RH:
	the message CONFERENCE CALL goes off.

Subtask 23-73-00-710-276-F ** ON A/C NOT FOR ALL

T. Test of the ALL CALL from the AFT ATTND station.

ACTION	RESULT
1.At the AFT LH ATTND station:	On the AFT LH AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the AFT LH AIP 320RH:
push the INT pushbutton switch.	'##' comes on.
push the ALL pushbutton switch.	'##' goes off.
	the message ALL comes on.
	On the FWD, MID, EXIT and AFT RH AIPs 320RH and 322RH:
	the green light comes on.
	On all ACPs 340RH:
	the pink lights come on.
	the message CONFERENCE CALL comes on.
	At all ATTND stations:
	a single HI-LO chime is heard.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At all ATTND stations:	On all ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the FWD, MID, EXIT and AFT RH AIPs 320RH and 322RH:
	the green light goes off.
	On the AFT LH AIP 320RH:
	'#' goes off.
4.At all ATTND stations:	At all ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At all ATTND stations:	On the AFT AIPs 320RH:
put the handset back into its cradle.	the message ALL goes off.
	On the FWD, MID and EXIT AIPs 320RH and 322RH:
	the message CONFERENCE CALL goes off.
6.Repeat the test with the Aft RH ATTND station.	The test follows the same procedure as the test from the AFT LH ATTND station.

Subtask 23-73-00-710-235-L ** ON A/C NOT FOR ALL

U. Do the test of the ALL CALL from the forward attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off.
	the message ALL ATTND comes on.
	On the mid, exit and aft left and right AIPs:
	the message CALL ALL ATTND comes on.
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the pink indicator lights come on.
	At all attendant stations:
	you hear a HI-LO chime.
3.At the mid, exit and aft left and right attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the mid, exit and aft left and right AIPs:
	the green indicator goes off.
	On all ACPs: the pink indicator lights go off.
4.Through the handsets at the forward, mid, exit and aft left and right attendant stations:	Through the handsets at the forward, mid, exit and aft left and right attendant stations:
Make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-274-M ** ON A/C NOT FOR ALL

V. Do the test of the ALL call from the mid attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off.
	the message ALL ATTND comes on.
	On the forward, exit, aft left and right AIPs:
	the message CALL ALL ATTND comes on.
	the green indicator light comes on.
	On all Area Call Panels (ACPs):
	the pink indicator lights come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
3.At the forward, exit, aft left and right attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the forward, exit, aft left and right AIPs:
	the green indicator light goes off.
	On all ACPs:
	the pink indicator lights go off.
4.Through the handsets at the forward, mid, exit and aft attendant stations:	Through the handsets at the forward, mid, exit and aft attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-275-M ** ON A/C NOT FOR ALL

W. Do the test of the ALL call from the exit attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the exit attendant station:	On the exit AIP:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off.
	the message ALL ATTND comes on.
	On the forward, mid and aft AIPs:
	the message > CALL ALL ATTND comes on.
	the green indicator light comes on.
	On all Area Call Panels (ACPs):
	the pink indicator lights come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
3.At the forward, mid, aft left and right attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the forward, mid and aft AIPs:
	the green indicator light goes off.
	On the ACPs:
	the pink indicator lights go off.
4.Through the handsets at the forward, mid, exit and aft attendant stations:	Through the handsets at the forward, mid, exit and aft attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-276-M ** ON A/C NOT FOR ALL

X. Do the test of the ALL call from the aft attendant station:

ACTION	RESULT
1.At the aft left attendant station:	On the aft left Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the aft left attendant station:	On the aft left AIP:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off.
	the message ALL ATTND comes on.
	On the forward, mid, exit and aft right AIPs:
	the message CALL ALL ATTND comes on.
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the pink indicator lights come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
3.At the forward, mid, exit and aft right attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	the green indicator goes off.
	On all ACPs:
	the pink indicator lights go off.
4.Through the handsets at the forward, mid, exit and aft attendant stations:	Through the handsets at the forward, mid, exit and aft attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.
6.Repeat the test from the aft right attendant station.	The test has the same procedure as the test from the aft left attendant station.

Subtask 23-73-00-710-235-M ** ON A/C NOT FOR ALL

Y. Do the Test of the ALL CALL from the FWD ATTND station.

ACTION	RESULT
1.At the FWD ATTND station:	On the FWD Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the FWD ATTND station:	On the FWD AIP:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off.
	the message ALL ATTND comes on.
	On the MID ,EXIT and AFT LH and RH AIPs:
	the message CALL ALL ATTND comes on,
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the pink indicators come on.
	Through the loudspeakers at all attendant stations:
	a HI-LO chime is heard.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At the MID ,EXIT and AFT LH and RH ATTND stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the MID, EXIT and AFT LH and RH AIPs:
	the green indicator goes off.
4.Through the handsets at the FWD, MID, EXIT and AFT LH and RH ATTND stations:	Through the handsets at the FWD, MID, EXIT and AFT LH and RH ATTND stations:
do an announcement.	the announcement is heard.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-274-N ** ON A/C NOT FOR ALL

Z. Do the Test of the ALL CALL from the MID attendant station.

ACTION	RESULT
1.At the MID attendant station:	On the MID Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the MID attendant station:	On the MID AIP:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off,
	the message ALL ATTND comes on.
	On the forward, EXIT and AFT LH and RH AIPs:
	the message CALL ALL ATTND comes on,
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the pink indicators come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At the forward, EXIT and AFT LH and RH attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the forward, EXIT and AFT LH and RH AIPs:
	the green indicator goes off.
4.Through the handsets at the forward, MID, EXIT and AFT LH and RH attendant stations:	Through the handsets at the forward, MID, EXIT and AFT LH and RH attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-275-N ** ON A/C NOT FOR ALL

AA. Do the Test of the ALL CALL from the EXIT attendant station.

ACTION	RESULT
1.At the EXIT attendant station:	On the EXIT Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the EXIT attendant station:	On the EXIT AIP:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off,
	the message ALL ATTND comes on.
	On the forward, MID and AFT LH and RH AIPs:
	the message CALL ALL ATTND comes on,
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the pink indicators come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At the forward, MID and AFT LH and RH attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the forward, MID and AFT LH and RH AIPs:
	the green indicator goes off.
4.Through the handsets at the forward, MID, EXIT and AFT LH and RH attendant stations:	Through the handsets at the forward, MID, EXIT and AFT LH and RH attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-276-N ** ON A/C NOT FOR ALL

AB. Do the Test of the ALL CALL from the AFT LH and RH attendant stations:

ACTION	RESULT
1.At the AFT LH attendant station:	On the AFT LH Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the AFT LH attendant station:	On the AFT LH AIP:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off,
	the message ALL ATTND comes on.
	On the forward MID, EXIT and AFT RH AIPs:
	the message CALL ALL ATTND comes on,
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the pink indicators come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At the forward MID, EXIT and AFT RH attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	the green indicator goes off.
	On all ACPs:
	the pink indicators go off.
4.Through the handsets at the forward, MID, EXIT and AFT LH and RH attendant stations:	Through the handsets at the forward, MID, EXIT and AFT LH and RH attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.
6.Repeat the test from the AFT RH attendant station.	The test has the same procedure as the test from the AFT LH attendant station.

Subtask 23-73-00-710-235-O ** ON A/C NOT FOR ALL

AC. Do the test of the ALL CALL from the forward attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the ALL ATTND pushbutton.	the number symbol goes off.
	the message ALL ATTND comes on.
	On the mid, exit and aft AIPs:
	the message CALL ALL ATTND comes on,
	the green indicator comes on.
	On all Area Call Panels (ACP):
	the green indicators come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At the mid, exit and aft left and right attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the mid, exit and aft left and right AIPs:
	the green indicator goes off.
4.Through the handsets at the forward, mid, exit and aft left and right attendant stations:	Through the handsets at the forward, mid, exit and aft left and right attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handsets back in the cradles.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-274-P ** ON A/C NOT FOR ALL

AD. Do the Test of the ALL CALL from the mid attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the ALL ATTND pushbutton.	the number symbol goes off.
	the message ALL ATTND comes on.
	On the forward, exit and aft AIPs:
	the message CALL ALL ATTND comes on,
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the green indicators come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At the forward, exit and aft left and right attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the forward, exit and aft left and right AIPs:
	the green indicator goes off.
4.Through the handsets at the forward, mid, exit and aft left and right attendant stations:	Through the handsets at the forward, mid, exit and aft left and right attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-275-P ** ON A/C NOT FOR ALL

AE. Do the test of the ALL CALL from the exit attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the exit attendant station:	On the exit AIP:
push the ALL ATTND pushbutton.	the number symbol goes off.
	the message ALL ATTND comes on.
	On the forward, mid and aft left and right AIPs:
	the message CALL ALL ATTND comes on,
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the green indicators come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At the forward, mid and aft left and right attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On the forward, mid and aft left and right AIPs:
	the green indicator goes off.
4.Through the handsets at the forward, mid, exit and aft left and right attendant stations:	Through the handsets at the forward, mid, exit and aft left and right attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.

Subtask 23-73-00-710-276-P ** ON A/C NOT FOR ALL

AF. Do the test of the ALL CALL from the aft left and right attendant stations:

ACTION	RESULT
1.At the aft left attendant station:	On the aft left Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the aft left attendant station:	On the aft left AIP:
push the ALL ATTND pushbutton.	the number symbol goes off.
	the message ALL ATTND comes on.
	On the forward, mid, exit and aft right AIPs:
	the message CALL ALL ATTND comes on,
	the green indicator comes on.
	On all Area Call Panels (ACPs):
	the green indicators come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	In the cockpit:
	the crew CALL BUZZER sounds 1 times for approx. 1 s.
3.At the forward, mid, exit and aft right attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	the green indicator goes off.
	On all ACPs:
	the green indicators go off.
4.Through the handsets at the forward, mid, exit and aft left and right attendant stations:	Through the handsets at the forward, mid, exit and aft left and right attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handset back to the cradle.	the message > ALL ATTND goes off.
6.Repeat the test from the aft right attendant station.	The test has the same procedure as the test from the aft left attendant station.

Subtask 23-73-00-710-236-B ** ON A/C NOT FOR ALL

AG. Do the test of the MID ATTND Call from the FWD ATTND station.

ACTION	RESULT
1.At the FWD ATTND Station:	On FWD AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the FWD AIP:
push the INTPH pushbutton switch.	'##' comes on.
push the MID pushbutton switch.	'##' goes off.
	the message MID comes on.
	On the MID AIP 320RH:
	the green light comes on.
	the message CALL FWD L comes on.
	On the MID ACPs 340RH:
	the pink lights come on.
	At all ATTND stations:
	a single HI-LO chime is heard.
3.At the MID ATTND station:	On the MID ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the MID AIP 320RH:
	the green light goes off.
	the message CALL FWD L changes to FWD L.
	On the FWD AIP 320RH:
	'#' goes off.
4.At the FWD and MID ATTND stations:	At the FWD and MID ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the ATTND stations:	At the FWD AIP 320RH:
put the handset back into its cradle.	the message MID goes off.
	At the MID AIP 320RH:
	the message FWD L goes off.

Subtask 23-73-00-710-236-L ** ON A/C NOT FOR ALL

AG. Do the test of the MID attendant call from the forward attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the forward attendant-station handset:	On the forward AIP:
push the INTPH pushbutton.	two number symbols flash.
push the MID pushbutton.	two number symbols go off.
	the message MID ATTND comes on.
	On the mid AIP:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the mid Area Call Panels (ACPs):
	the pink indicators come on.
3.On the mid attendant station:	On the forward AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the mid AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the mid ACPs:
	the pink indicators go off.
4.Through the handsets at the forward and mid attendant stations:
make an announcement.	Through the handsets at the forward and mid attendant stations:
	you hear the announcement.
5.On the mid attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > MID ATTND goes off.
	the number symbol flashes.
	On the mid AIP:
	the message > FWD L ATTND goes off.
6.On the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-236-W ** ON A/C NOT FOR ALL

AG. Do the Test of the MID ATTND CALL from the FWD ATTND station.

ACTION	RESULT
1.At the FWD ATTND station:	On the FWD Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the FWD ATTND station handset:	On the FWD AIP:
push the MID ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message MID ATTND comes on.
	On the MID AIP:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	At all ATTND stations:
	you hear a HI-LO chime.
	On the MID Area Call Panels (ACPs):
	the green indicators come on.
3.On the MID ATTND station:	On the FWD AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the MID AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the MID ACPs:
	the green indicators go off.
4.Through the handsets at the FWD and MID ATTND station:
do an announcement.	Through the handsets at the FWD and MID ATTND station:
	you hear the announcement.
5.On the MID ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the MID AIP:
	the message > FWD L ATTND goes off.
6.On the FWD ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-277-G ** ON A/C NOT FOR ALL

AH. Do the test of the EXIT ATTND Call from the FWD ATTND station.

ACTION	RESULT
1.At the FWD ATTND Station:	On FWD AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the FWD AIP:
push the INTPH pushbutton switch.	'##' comes on.
push the EXIT pushbutton switch.	'##' goes off.
	the message EXIT comes on.
	On the EXIT AIP 320RH: the green light comes on.
	the message CALL FWD L comes on.
	On the EXIT ACPs 340RH:
	the pink lights come on.
	At all ATTND stations:
	a single HI-LO chime is heard.
3.At the EXIT ATTND station:	On the EXIT ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the EXIT AIP 320RH:
	the green light goes off.
	the message CALL FWD L changes to FWD L.
	On the FWD AIP 320RH:
	'#' goes off.
4.At the FWD and EXIT ATTND stations:	At the FWD and EXIT ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the FWD and EXIT ATTND stations:	At the FWD AIP 320RH:
put the handset back into its cradle.	the message EXIT goes off.
	At the EXIT AIP 320RH:
	the message FWD L goes off.

Subtask 23-73-00-710-278-G ** ON A/C NOT FOR ALL

AI. Do the test of the AFT ATTND Call from the FWD ATTND station.

ACTION	RESULT
1.At the FWD ATTND Station:	On FWD AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the FWD AIP:
push the INTPH pushbutton switch.	'##' comes on.
push the AFT L pushbutton switch.	'##' goes off.
	the message AFT L comes on.
	On the AFT LH AIP 320RH: the green light comes on.
	the message CALL FWD L comes on.
	On the AFT ACPs 340RH:
	the pink lights come on.
	At all ATTND stations:
	a single HI-LO chime is heard.
3.At the AFT LH ATTND station:	On the AFT ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the AFT LH AIP 320RH:
	the green light goes off.
	the message CALL FWD L changes to FWD L.
	On the FWD AIP 320RH:
	'#' goes off.
4.At the FWD and AFT LH ATTND stations:	At the FWD and AFT LH ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the FWD and AFT LH ATTND stations:	At the FWD AIP 320RH:
put the handset back into its cradle.	the message AFT L goes off.
	At the AFT LH AIP 320RH:
	the message FWD L goes off.
6.Repeat the test with the AFT RH ATTND station.	The test follows the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-277-Q ** ON A/C NOT FOR ALL

AJ. Do the test of the EXIT attendant call from the forward attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the INTPH pushbutton.	two number symbols flash.
push the EXIT pushbutton.	two number symbols go off.
	the message EXT ATTND comes on.
	On the exit AIP:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the exit Area Call Panels (ACPs):
	the pink indicators come on.
3.On the exit attendant station:	On the forward AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the exit AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the exit ACPs:
	the pink indicators go off.
4.Through the handsets at the forward and exit attendant stations:	Through the handsets at the forward and exit attendant stations:
make an announcement.	you hear the announcement.
5.On the exit attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the exit AIP:
	the message > FWD L ATTND goes off.
6.On the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-278-P ** ON A/C NOT FOR ALL

AK. Do the test of the AFT attendant call from the forward attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the INTPH pushbutton.	two number symbols flash.
push the AFT pushbutton.	two number symbols go off.
	the message AFT ATTND comes on.
	On the aft AIPs:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the aft Area Call Panels (ACPs):
	the pink indicators come on.
3.On the aft left attendant station:	On the forward AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the AFT left AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the aft right AIP:
	the green indicator goes off.
	the message CALL FWD L ATTND goes off.
	On the aft ACPs:
	the pink indicators go off.
4.Through the handsets at the forward and aft left attendant stations:	Through the handsets at the forward and aft left attendant stations:
make an announcement.	you hear the announcement.
5.On the aft left attendant station:	On the forward AIP:
put the handset back into its cradle.
	the message > AFT ATTND goes off. the number symbol flashes.
	On the aft left attendant AIP:
	the message > FWD L ATTND goes off.
6.On the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the aft right attendant station.	The test has the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-277-Y ** ON A/C NOT FOR ALL

AL. Do the Test of the Exit Attendant Call from the forward Attendant station.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the INTPH pushbutton.	two number symbols flash.
push the EXIT pushbutton.	two number symbols go off.
	the message EXT ATTND comes on.
	On the exit AIPs:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	At all attendant stations:
	you hear a HI-LO chime.
	On the exit Area Call Panels (ACPs):
	the pink indicators come on.
3.On the exit left attendant station:	On the forward AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the exit left AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the exit ACPs:
	the pink indicators go off.
4.Through the handsets at the forward and exit attendant station:	Through the handsets at the forward and exit attendant station:
do an announcement.	you hear the announcement.
5.On the exit left attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the exit left AIP:
	the message > FWD L ATTND goes off.
6.On the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the exit right attendant station.	The test has the same procedure as the test with the exit left attendant station:

Subtask 23-73-00-710-278-W ** ON A/C NOT FOR ALL

AM. Do the Test of the AFT ATTND CALL from the FWD ATTND station.

ACTION	RESULT
1.At the FWD ATTND station:	On the FWD Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the FWD ATTND station:	On the FWD AIP:
push the INTPH pushbutton.	two number symbols flash.
push the AFT pushbutton.	two number symbols go off.
	the green indicator comes on.
	the message AFT ATTND comes on.
	On the AFT AIPs:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	At all ATTND stations:
	you hear a single HI-LO chime.
	On the AFT Area Call Panels (ACPs):
	the pink indicators come on.
3.On the AFT LH ATTND station:	On the FWD AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the AFT LH AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the AFT RH AIP:
	the green indicator goes off.
	the message CALL FWD L ATTND goes off.
	On the AFT ACPs:
	the pink indicators go off.
4.Through the handsets at the FWD and AFT LH ATTND station:	Through the handsets at the FWD and AFT LH ATTND station:
do an announcement.	you hear the announcement.
5.On the AFT LH ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the AFT LH ATTND AIP:
	the message > FWD L ATTND goes off.
6.On the FWD ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH ATTND station.	The test has the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-277-AC ** ON A/C NOT FOR ALL

AN. Do the Test of the EXIT ATTND CALL from the FWD ATTND station.

ACTION	RESULT
1.At the FWD ATTND station:	On the FWD Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the FWD ATTND station:	On the FWD AIP:
push the EXT ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message EXIT ATTND comes on.
	On the EXIT AIP:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the EXIT Area Call Panels (ACPs):
	the green indicators come on.
3.On the EXIT ATTND station:	On the FWD AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the EXIT AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the EXIT ACPs:
	the green indicators go off.
4.Through the handsets at the FWD and EXIT ATTND station:	Through the handsets at the FWD and EXIT ATTND station:
do an announcement.	you hear the announcement.
5.On the EXIT ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the EXIT AIP:
	the message > FWD L ATTND goes off.
6.On the FWD ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-278-A0 ** ON A/C NOT FOR ALL

AO. Do the Test of the AFT ATTND CALL from the FWD ATTND station.

ACTION	RESULT
1.At the FWD ATTND station:	On the FWD Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the FWD ATTND station:	On the FWD AIP:
push the AFT ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message AFT ATTND comes on.
	On the AFT AIPs:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the AFT Area Call Panels (ACPs):
	the green indicators come on.
3.On the AFT LH ATTND station:	On the FWD AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the AFT LH AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the AFT RH AIP:
	the green indicator goes off.
	the message CALL FWD L ATTND goes off.
	On the AFT ACPs:
	the green indicators go off.
4.Through the handsets at the FWD and AFT LH ATTND station:	Through the handsets at the FWD and AFT LH ATTND station:
do an announcement.	you hear the announcement.
5.On the AFT LH ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the AFT LH ATTND AIP:
	the message > FWD L ATTND goes off.
6.On the FWD ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH ATTND station.	The test has the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-279-B ** ON A/C NOT FOR ALL

AP. Do the test of the Forward Attendant Call from the MID Attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid AIP 320RH/322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the mid AIP:
push the INTPH pushbutton switch.	'##' comes on.
push the FWD pushbutton switch.	'##' goes off.
	the message FWD comes on.
	On the forward AIP 320RH: the green light comes on.
	the message CALL MID L comes on.
	On the forward ACPs 340RH:
	the pink lights come on.
	At all attendant stations:
	you hear aa HI-LO chime.
3.At the forward attendant station:	On the forward ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the forward AIP 320RH:
	the green light goes off.
	the message CALL MID L changes to MID L.
	On the mid AIP:
	'#' goes off.
4.Thorugh the handsets at the forward and mid attendant stations:	Through the handsets at the forward and mid attendant stations:
make an announcement.	you hear the announcement.
5.At the forward and mid attendant stations:	On the mid AIP:
put the handset back into its cradle.	the message FWD goes off.
	On the forward AIP 320RH:
	the message MID L goes off.

Subtask 23-73-00-710-280-G ** ON A/C NOT FOR ALL

AQ. Do the test of the EXIT ATTND Call from the MID ATTND station.

ACTION	RESULT
1.At the MID ATTND Station:	On MID AIP 320RH/322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the MID AIP:
push the INTPH pushbutton switch.	'##' comes on.
push the EXIT pushbutton switch.	'##' goes off.
	the message EXIT comes on.
	On the EXIT AIP 320RH/322RH: the green light comes on.
	the message CALL MID L comes on.
	On the EXIT ACPs 340RH:
	the pink lights come on.
	At all ATTND stations:
	a single HI-LO chime is heard.
3.At the EXIT ATTND station:	On the EXIT ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the EXIT AIP:
	the green light goes off.
	the message CALL MID L changes to MID L.
	On the MID AIP:
	'#' goes off.
4.At the MID and EXIT ATTND stations:	At the MID and EXIT ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the MID and EXIT ATTND stations:	At the MID AIP:
put the handset back into its cradle.	the message EXIT goes off.
	At the EXIT AIP:
	the message MID L goes off.

Subtask 23-73-00-710-279-L ** ON A/C NOT FOR ALL

AR. Do the test of the FWD attendant call from the mid attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off.
	the message FWD ATTND comes on.
	On the forward AIP:
	the message CALL MID L ATTND comes on.
	the green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the forward Area Call Panels (ACPs):
	the pink indicator lights come on.
3.On the forward attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP:
	the message > MID L ATTND comes on.
	the green indicator light goes off.
	On the forward ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and forward attendant stations:	Through the handsets at the mid and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the forward attendant station:	On the mid AIP:
put the handset back into its cradle.	the message > FWD ATTND goes off. the number symbol flashes.
	On the forward AIP:
	the message > MID L ATTND goes off.
6.On the mid attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-280-Q ** ON A/C NOT FOR ALL

AS. Do the test of the EXIT attendant call from the mid attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the EXIT pushbutton.	two number symbols go off.
	the message EXT ATTND comes on.
	On the exit AIP:
	the message CALL MID L ATTND comes on.
	the green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the exit Area Call Panels (ACPs):
	the pink indicator lights come on.
3.On the exit attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the exit AIP:
	the message > MID L ATTND comes on.
	the green indicator light goes off.
	On the exit ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and exit attendant stations:	Through the handsets at the mid and exit attendant stations:
make an announcement.	you hear the announcement.
5.On the exit attendant station:	On the mid AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the exit AIP:
	the message > MID L ATTND goes off.
6.On the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-279-V ** ON A/C NOT FOR ALL

AT. Do the test of the forward attendant call from the MID attendant station.

ACTION	RESULT
1.At the MID attendant station:	On the MID Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the MID attendant station:	On the MID AIP:
push the FWD ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message FWD ATTND comes on.
	On the forward AIP:
	the message CALL MID R ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the forward Area Call Panels (ACPs):
	the green indicators come on.
3.On the forward attendant station:	On the MID AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP:
	the message > MID R ATTND comes on,
	the green indicator goes off.
	On the forward ACPs:
	the green indicators go off.
4.Through the handsets at the MID and forward attendant stations:	Through the handsets at the MID and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the forward attendant station:	On the MID AIP:
put the handset back into its cradle.	the message > FWD ATTND goes off. the number symbol flashes.
	On the forward AIP:
	the message > MIR R ATTND goes off.
6.On the MID attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-280-A0 ** ON A/C NOT FOR ALL

AU. Do the Test of the EXIT ATTND CALL from the MID ATTND station.

ACTION	RESULT
1.At the MID ATTND station:	On the MID Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the MID ATTND station:	On the MID AIP:
push the EXIT ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message EXT ATTND comes on.
	On the EXIT AIP:
	the message CALL MID R ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the EXIT Area Call Panels (ACPs):
	the green indicators come on.
3.On the EXIT ATTND station:	On the MID AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the EXIT AIP:
	the message > MID R ATTND comes on,
	the green indicator goes off.
	On the EXIT ACPs:
	the green indicators go off.
4.Through the handsets at the MID and EXIT ATTND station:	Through the handsets at the MID and EXIT ATTND station:
do an announcement.	you hear the announcement.
5.On the EXIT ATTND station:	On the MID AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the EXIT AIP:
	the message > MID R ATTND goes off.
6.On the MID ATTND station:	On the MID AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-279-W ** ON A/C NOT FOR ALL

AV. Do the test of the forward attendant call from the MID attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the mid attendant-station handset:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off.
	the message FWD ATTND comes on.
	On the forward AIP:
	the message CALL MID R ATTND comes on.
	the green indicator light comes on.
	At all attendant stations:
	you hear a HI-LO chime.
	On the forward Area Call Panels (ACP):
	the pink indicator lights come on.
3.On the forward attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP:
	the message > MID R ATTND comes on.
	the green indicator light goes off.
	On the forward ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and forward attendant stations:	Through the handsets at the mid and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the forward attendant station:	On the mid AIP:
put the handset back into its cradle.	the message > FWD ATTND goes off. the number symbol flashes.
	On the forward AIP:
	the message > MID R ATTND goes off.
6.On the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-280-AA ** ON A/C NOT FOR ALL

AW. Do the test of the EXIT attendant call from the MID attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the mid attendant-station handset:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the EXIT pushbutton.	two number symbols go off.
	the message EXT ATTND comes on.
	On the exit AIP:
	the message CALL MID R ATTND comes on.
	the green indicator light comes on.
	At all attendant stations:
	you hear a HI-LO chime.
	On the exit Area Call Panels (ACP):
	the pink indicator lights come on.
3.On the exit attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the exit AIP:
	the message > MID R ATTND comes on.
	the green indicator light goes off.
	On the exit ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and exit attendant stations:	Through the handsets at the mid and exit attendant stations:
make an announcement.	you hear the announcement.
5.On the exit attendant station:	On the mid AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the exit AIP:
	the message > MID R ATTND goes off.
6.On the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-281-G ** ON A/C NOT FOR ALL

AX. Do the test of the AFT ATTND Call from the MID ATTND station.

ACTION	RESULT
1.At the MID ATTND Station:	On MID AIP 320RH/322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the MID AIP:
push the INTPH pushbutton switch.	'##' comes on.
push the AFT L pushbutton switch.	'##' goes off.
	the message AFT L comes on.
	On the AFT LH AIP 320RH: the green light comes on.
	the message CALL MID L comes on.
	On the AFT ACPs 340RH:
	the pink lights come on.
	At all ATTND stations:
	a single HI-LO chime is heard.
3.At the AFT LH ATTND station:	On the AFT ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the AFT LH AIP 320RH:
	the green light goes off.
	the message CALL MID L changes to MID L.
	On the MID AIP:
	'#' goes off.
4.At the MID and AFT LH ATTND stations:	At the MID and AFT LH ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the MID and AFT LH ATTND stations:	At the MID AIP:
put the handset back into its cradle.	the message AFT L goes off.
	At the AFT LH AIP 320RH:
	the message MID L goes off.
6.Repeat the test with the AFT RH ATTND station.	The test follows the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-281-P ** ON A/C NOT FOR ALL

AX. Do the test of the AFT attendant call from the mid attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the AFT pushbutton.	two number symbols go off.
	the message AFT ATTND comes on.
	On the aft AIPs:
	the message CALL MID L ATTND comes on.
	the green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the aft Area Call Panels (ACPs):
	the pink indicator lights come on.
3.On the aft left attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the aft left AIP:
	the message > MID L ATTND comes on.
	the green indicator light goes off.
	On the aft right AIP:
	the green indicator light goes off.
	the message CALL MID L ATTND goes off.
	On the aft ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and aft left attendant stations:	Through the handsets at the mid and aft left attendant stations:
make an announcement.	you hear the announcement.
5.On the aft left attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the aft left attendant AIP:
	the message > MID L ATTND goes off.
6.On the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the aft right attendant station.	The test has the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-281-W ** ON A/C NOT FOR ALL

AX. Do the Test of the AFT ATTND CALL from the MID ATTND station.

ACTION	RESULT
1.At the MID ATTND station:	On the MID Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the MID ATTND station:	On the MID AIP:
push the INTPH pushbutton.	two number symbols flash.
push the AFT pushbutton.	two number symbols go off.
	the green indicator comes on.
	the message AFT ATTND comes on.
	On the AFT AIPs:
	the message CALL MID L ATTND comes on,
	the green indicator comes on.
	At all ATTND stations:
	you hear a single HI-LO chime.
	On the AFT Area Call Panels (ACPs):
	the pink indicators come on.
3.On the AFT LH ATTND station:	On the MID AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the AFT LH AIP:
	the message > MID L ATTND comes on,
	the green indicator goes off.
	On the AFT RH AIP:
	the green indicator goes off.
	the message CALL MID L ATTND goes off.
	On the AFT ACPs:
	the pink indicators go off.
4.Through the handsets at the MID and AFT LH ATTND station:	Through the handsets at the MID and AFT LH ATTND station:
do an announcement.	you hear the announcement.
5.On the AFT LH ATTND station:	On the MID AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the AFT LH ATTND AIP:
	the message > MID L ATTND goes off.
6.On the MID ATTND station:	On the MID AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH ATTND station.	The test has the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-281-A0 ** ON A/C NOT FOR ALL

AX. Do the Test of the aft attendant call from the mid attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the aft attendant pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message aft attendant comes on.
	On the aft AIPs:
	the message CALL MID R ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the aft Area Call Panels (ACPs):
	the green indicators come on.
3.On the aft left attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the aft left AIP:
	the message > MID R ATTND comes on,
	the green indicator goes off.
	On the aft right AIP:
	the green indicator goes off.
	the message CALL MID R ATTND goes off.
	On the aft ACPs:
	the green indicators go off.
4.Through the handsets at the mid and aft left attendant station:	Through the handsets at the mid and aft left attendant station:
do an announcement.	you hear the announcement.
5.On the aft left attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the aft left attendant AIP:
	the message > MID R ATTND goes off.
6.On the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the aft right attendant station.	The test has the same procedure as the test with the aft left attedant station.

Subtask 23-73-00-710-281-AA ** ON A/C NOT FOR ALL

AX. Do the test of the AFT attendant call from the MID attendant station.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the mid attendant-station handset:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the AFT pushbutton.	two number symbols go off.
	the message AFT ATTND comes on.
	On the aft AIPs:
	the message CALL MID R ATTND comes on.
	the green indicator light comes on.
	At all attendant stations:
	you hear the HI-LO chime.
	On the aft Area Call Panels (ACP):
	the pink indicator lights come on.
3.On the aft left attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the aft left AIP:
	the message > MID R ATTND comes on.
	the green indicator light goes off.
	On the aft right AIP:
	the green indicator light goes off.
	the message CALL MID R ATTND goes off.
	On the aft ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and aft left attendant stations:	Through the handsets at the mid and aft left attendant stations:
make an announcement.	you hear the announcement.
5.On the aft left attendant station:	On the mid AIP:
put the handset back into its cradle.	the message > AFT ATTND goes off.
	the number symbol flashes.
	On the aft left AIP:
	the message > MID R ATTND goes off.
6.On the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH attendant station.	The test has the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-282-B ** ON A/C NOT FOR ALL

AY. Do the test of the Forward Attendant Call from the EXIT Attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit AIP 320RH/322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the exit AIP:
push the INTPH pushbutton switch.	'##' comes on.
push the FWD pushbutton switch.	'##' goes off.
	the message FWD comes on.
	On the forward AIP 320RH: the green light comes on.
	the message CALL EXIT L comes on.
	On the forward ACPs 340RH:
	the pink lights come on.
	At all attendant stations:
	you hear a HI-LO chime.
3.At the forward attendant station:	On the forward ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the forward AIP 320RH:
	the green light goes off.
	the message CALL EXIT L changes to EXIT L.
	On the exit AIP:
	'#' goes off.
4.Through the handsets at the forward and exit attendant stations:	Through the handsets at the forward and exit attendant stations:
make an announcement.	you hear the announcement.
5.At the forward and exit attendant stations:	On the exit AIP:
put the handset back into its cradle.	the message FWD goes off.
	On the forward AIP 320RH:
	the message EXIT L goes off.

Subtask 23-73-00-710-283-B ** ON A/C NOT FOR ALL

AZ. Do the test of the MID Attendant Call from the EXIT Attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit AIP 320RH/322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the exit AIP:
push the INTPH pushbutton switch.	'##' comes on.
push the MID pushbutton switch.	'##' goes off.
	the message MID R comes on.
	On the mid AIP 320RH/322RH: the green light comes on.
	the message CALL EXIT R comes on.
	On the mid ACPs 340RH:
	the pink lights come on.
	At all attendant stations:
	you hear a HI-LO chime.
3.At the mid attendant station:	On the mid ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the mid AIP:
	the green light goes off.
	the message CALL EXIT R changes to EXIT R.
	On the exit AIP:
	'#' goes off.
4.Through the handsets at the mid and exit attendant stations:	Through the handsets at the mid and exit attendant stations:
make an announcement.	you hear the announcement.
5.At the mid and exit attendant stations:	On the exit AIP:
put the handset back into its cradle.	the message MID goes off.
	On the mid AIP:
	the message EXIT R goes off.

Subtask 23-73-00-710-282-L ** ON A/C NOT FOR ALL

BA. Do the test of the FWD attendant call from the exit attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the exit attendant station:	On the exit AIP:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off.
	the message FWD ATTND comes on.
	On the forward AIP:
	the message CALL EXT R ATTND comes on.
	the green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the forward Area Call Panels (ACPs):
	the pink indicator lights come on.
3.On the forward attendant station:	On the exit AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP:
	the message > EXT R ATTND comes on.
	the green indicator light goes off.
	On the forward ACPs:
	the pink indicator lights go off.
4.Through the handsets at the exit and forward attendant stations:	Through the handsets at the exit and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the forward attendant station:	On the exit AIP:
put the handset back into its cradle.	the message > FWD ATTND goes off. the number symbol flashes.
	On the forward AIP:
	the message > EXT R ATTND goes off.
6.On the exit attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-283-L ** ON A/C NOT FOR ALL

BB. Do the test of the MID attendant call from the exit attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the exit attendant station:	On the exit AIP:
push the INTPH pushbutton.	two number symbols flash.
push the MID pushbutton.	two number symbols go off.
	the message MID ATTND comes on.
	On the mid AIP:
	the message CALL EXT R ATTND comes on.
	the green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the mid Area Call Panels (ACPs):
	the pink indicator lights come on.
3.On the mid attendant station:	On the exit AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the mid AIP:
	the message > EXT R ATTND comes on.
	the green indicator light goes off.
	On the mid ACPs:
	the pink indicator lights go off.
4.Through the handsets at the exit and mid attendant stations:	Through the handsets at the exit and mid attendant stations:
make an announcement.	you hear the announcement.
5.On the mid attendant station:	On the exit AIP:
put the handset back into its cradle.	the message > MID ATTND goes off. the number symbol flashes.
	On the mid AIP:
	the message > EXT R ATTND goes off.
6.On the exit attendant station:	On the mid AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-282-W ** ON A/C NOT FOR ALL

BC. Do the Test of the FWD ATTND CALL from the EXIT ATTND station.

ACTION	RESULT
1.At the EXIT ATTND station:	On the EXIT Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the EXIT ATTND station:	On the EXIT AIP:
push the FWD ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message FWD ATTND comes on.
	On the FWD AIP:
	the message CALL EXT R ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the FWD Area Call Panels (ACPs):
	the green indicators come on.
3.On the FWD ATTND station:	On the EXIT AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the FWD AIP:
	the message > EXT R ATTND comes on,
	the green indicator goes off.
	On the FWD ACPs:
	the green indicators go off.
4.Through the handsets at the EXIT and FWD ATTND station:	Through the handsets at the EXIT and FWD ATTND station:
do an announcement.	you hear the announcement.
5.On the FWD ATTND station:	On the EXT AIP:
put the handset back into its cradle.	the message > FWD ATTND goes off. the number symbol flashes.
	On the FWD AIP:
	the message > EXT R ATTND goes off.
6.On the EXIT ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-283-W ** ON A/C NOT FOR ALL

BD. Do the Test of the MID ATTND CALL from the EXIT ATTND station.

ACTION	RESULT
1.At the EXIT ATTND station:	On the EXIT Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the EXIT ATTND station:	On the EXIT AIP:
push the MID ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message MID ATTND comes on.
	On the MID AIP:
	the message CALL EXT R ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the MID Area Call Panels (ACPs):
	the green indicators come on.
3.On the MID ATTND station:	On the EXIT AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the MID AIP:
	the message > EXT R ATTND comes on,
	the green indicator goes off.
	On the MID ACPs:
	the green indicators go off.
4.Through the handsets at the EXIT and MID ATTND station:	Through the handsets at the EXIT and MID ATTND station:
do an announcement.	you hear the announcement.
5.On the MID ATTND station:	On the EXT AIP:
put the handset back into its cradle.	the message > MID ATTND goes off. the number symbol flashes.
	On the MID AIP:
	the message > EXT R ATTND goes off.
6.On the EXIT ATTND station:	On the MID AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-282-X ** ON A/C NOT FOR ALL

BE. Do the test of the forward attendant call from the EXIT attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the exit attendant-station handset:	On the exit AIP:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off,
	the message FWD ATTND comes on.
	On the forward AIP:
	the message CALL EXT L ATTND comes on,
	the green indicator comes on.
	At all attendant stations:
	you hear a HI-LO chime.
	On the forward Area Call Panels (ACP):
	the pink indicators come on.
3.On the forward attendant station:	On the exit AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP:
	the message > EXT L ATTND comes on,
	the green indicator goes off.
	On the forward ACPs:
	the pink indicators go off.
4.Through the handsets at the exit and forward attendant stations:	Through the handsets at the exit and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the forward attendant station:	On the exit AIP:
put the handset back into its cradle.	the message > FWD ATTND goes off, the number symbol flashes.
	On the forward AIP:
	the message > EXT L ATTND goes off.
6.On the exit attendant station:	On the exit AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-283-X ** ON A/C NOT FOR ALL

BF. Do the test of the MID attendant call from the EXIT attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the exit attendant-station handset:	On the exit AIP:
push the INTPH pushbutton.	two number symbols flash.
push the MID pushbutton.	two number symbols go off,
	the message MID ATTND comes on.
	On the mid AIP:
	the message CALL EXT L ATTND comes on,
	the green indicator comes on.
	At all attendant stations:
	you hear a HI-LO chime.
	On the mid Area Call Panels (ACP):
	the pink indicators come on.
3.On the mid attendant station:	On the exit AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the mid AIP:
	the message > EXT L ATTND comes on,
	the green indicator goes off.
	On the mid ACPs:
	the pink indicators go off.
4.Through the handsets at the exit and mid attendant stations:	Through the handsets at the exit and mid attendant stations:
make an announcement.	you hear the announcement.
5.On the mid attendant station:	On the exit AIP:
put the handset back into its cradle.	the message > MID ATTND goes off,
	the number symbol flashes.
	On the mid AIP:
	the message > EXT L ATTND goes off.
6.On the exit attendant station:	On the exit AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-284-G ** ON A/C NOT FOR ALL

BG. Do the test of the AFT ATTND Call from the EXIT ATTND station.

ACTION	RESULT
1.At the EXIT ATTND Station:	On EXIT AIP 322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the EXIT AIP 322RH:
push the INTPH pushbutton switch.	'##' comes on.
push the AFT L pushbutton switch.	'##' goes off.
	the message AFT L comes on.
	On the AFT LH AIP 320RH: the green light comes on.
	the message CALL EXIT R comes on.
	On the AFT ACPs 340RH:
	the pink lights come on.
	At all ATTND stations:
	a single HI-LO chime is heard.
3.At the AFT LH ATTND station:	On the AFT ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the AFT LH AIP 320RH:
	the green light goes off.
	the message CALL EXIT R changes to EXIT R.
	On the EXIT AIP 322RH:
	'#' goes off.
4.At the EXIT and AFT LH ATTND stations:	At the EXIT and AFT LH ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the EXIT and AFT LH ATTND stations:	At the EXIT AIP 322RH:
put the handset back into its cradle.	the message AFT L goes off.
	At the AFT LH AIP 320RH:
	the message EXIT R goes off.
6.Repeat the test with the AFT RH ATTND station.	The test follows the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-284-Q ** ON A/C NOT FOR ALL

BG. Do the test of the AFT attendant call from the exit attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the exit attendant station:	On the exit AIP:
push the INTPH pushbutton.	two number symbols flash.
push the AFT pushbutton.	two number symbols go off.
	the message AFT ATTND comes on.
	On the aft AIPs:
	the message CALL EXT R ATTND comes on.
	the green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the aft Area Call Panels (ACPs):
	the pink indicator lights come on.
3.On the aft left attendant station:	On the exit AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the aft left AIP:
	the message > EXT R ATTND comes on.
	the green indicator light goes off.
	On the aft right AIP:
	the green indicator light goes off.
	the message CALL EXT R ATTND goes off.
	On the aft ACPs:
	the pink indicator lights go off.
4.Through the handsets at the exit and aft left attendant stations:	Through the handsets at the exit and aft left attendant stations:
make an announcement.	you hear the announcement.
5.On the aft left attendant station:	On the exit AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the aft left attendant AIP:
	the message > EXT R ATTND goes off.
6.On the exit attendant station:	On the exit AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the aft right attendant station.	The test has the same procedure as the test with the aft left attend station.

Subtask 23-73-00-710-284-X ** ON A/C NOT FOR ALL

BG. Do the Test of the AFT ATTND CALL from the EXIT ATTND station.

ACTION	RESULT
1.At the EXIT ATTND station:	On the EXIT Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the EXIT ATTND station:	On the EXIT AIP:
push the INTPH pushbutton.	two number symbols flash.
push the AFT pushbutton.	two number symbols go off.
	the message AFT ATTND comes on.
	On the AFT AIPs:
	the message CALL EXT R ATTND comes on,
	the green indicator comes on.
	At all attendant stations:
	you hear a HI-LO chime.
	On the AFT Area Call Panels (ACPs):
	the pink indicators come on.
3.On the AFT LH ATTND station:	On the EXIT AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the AFT LH AIP:
	the message > EXT R ATTND comes on,
	the green indicator goes off.
	On the AFT RH AIP:
	the green indicator goes off.
	the message CALL EXT R ATTND goes off.
	On the AFT ACPs:
	the pink indicators go off.
4.Through the handsets at the EXIT and AFT LH ATTND station:	Through the handsets at the EXIT and AFT LH ATTND station:
make an announcement.	you hear the announcement.
5.On the AFT LH ATTND station:	On the EXIT AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the AFT LH ATTND AIP:
	the message > EXT R ATTND goes off.
6.On the EXIT ATTND station:	On the EXIT AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH ATTND station.	The test has the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-284-AB ** ON A/C NOT FOR ALL

BG. Do the Test of the aft attendant call from the exit attendant station.

ACTION	RESULT
1.At the exit attendant station:	On the exit Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the exit attendant station:	On the exit AIP:
push the AFT ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message AFT ATTND comes on.
	On the aft AIPs:
	the message CALL EXT R ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the aft Area Call Panels (ACPs):
	the green indicators come on.
3.On the aft left attendant station:	On the exit AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the aft left AIP:
	the message > EXT R ATTND comes on,
	the green indicator goes off.
	On the aft right AIP:
	the green indicator goes off.
	the message CALL EXT R ATTND goes off.
	On the aft ACPs:
	the green indicators go off.
4.Through the handsets at the exit and aft left attendant station:	Through the handsets at the exit and aft left attendant station:
do an announcement.	you hear the announcement.
5.On the aft left attendant station:	On the exit AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the aft left attendant AIP:
	the message > EXT R ATTND goes off.
6.On the exit attendant station:	On the exit AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH ATTND station.	The test has the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-284-AC ** ON A/C NOT FOR ALL

BG. Do the test of the AFT attendant call from the EXIT attendant station.

ACTION	RESULT
1.At the EXIT attendant station:	On the EXIT Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the EXIT attendant-station handset:	On the EXIT AIP:
push the INTPH pushbutton.	two number symbols flash.
push the AFT pushbutton.	two number symbols go off,
	the message AFT ATTND comes on.
	On the AFT AIPs:
	the message CALL EXT L ATTND comes on,
	the green indicator comes on.
	At all attendant stations:
	you hear a HI-LO chime.
	On the AFT Area Call Panels (ACP):
	the pink indicators come on.
3.On the AFT LH attendant station:	On the EXIT AIP:
lift the handset from the cradle.	the message > AFT ATTND comes on.
	On the AFT LH AIP:
	the message > EXT L ATTND comes on,
	the green indicator goes off.
	On the AFT RH AIP:
	the green indicator goes off,
	the message CALL EXT L ATTND goes off.
	On the AFT ACPs:
	the pink indicators go off.
4.Through the handsets at the EXIT and AFT LH attendant stations:	Through the handsets at the EXIT and AFT LH attendant stations:
make an announcement.	you hear the announcement.
5.On the AFT LH attendant station:	On the EXIT AIP:
put the handset back into its cradle.	the number symbol flashes.
	On the AFT LH AIP:
	the message > EXT L ATTND goes off.
6.On the EXIT attendant station:	On the EXIT AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH attendant station. NOTE: The test has the same procedure as the test with the AFT LH attendant station.

Subtask 23-73-00-710-285-B ** ON A/C NOT FOR ALL

BH. Do the test of the Forward Attendant Call from the AFT ATTND stations.

ACTION	RESULT
1.At the aft left attendant station:	On the aft left AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the aft left AIP 320RH:
push the INTPH pushbutton switch.	'##' comes on.
push the FWD pushbutton switch.	'##' goes off.
	the message FWD comes on.
	On the forward AIP 320RH: the green light comes on.
	the message CALL AFT L comes on.
	On the forward ACPs 340RH:
	the pink lights come on.
	At all attendant stations:
	you hear a HI-LO chime.
3.At the forward attendant station:	On the forward ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the forward AIP 320RH:
	the green light goes off.
	the message CALL AFT L changes to AFT L.
	On the aft left AIP 320RH:
	'#' goes off.
4.Through the handsets at the forward and aft left attendant stations:	Through the handsets at the forward and aft left attendant stations:
make an announcement.	you hear the announcement.
5.At the forward and aft left attendant stations:	On the aft left AIP 320RH:
put the handset back into its cradle.	the message FWD goes off.
	On the forward AIP 320RH:
	the message AFT L goes off.
6.Repeat the test with the aft right attendant station.	The test follows the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-286-B ** ON A/C NOT FOR ALL

BI. Do the test of the MID Attendant Call from the AFT Attendant stations.

ACTION	RESULT
1.At the aft left attendant station:	On the aft left AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the aft left AIP 320RH:
push the INTPH pushbutton switch.	'##' comes on.
push the MID pushbutton switch.	'##' goes off.
	the message MID comes on.
	On the mid AIP 320RH/322RH: the green light comes on.
	the message CALL AFT L comes on.
	On the mid ACPs 340RH:
	the pink lights come on.
	At all attendant stations:
	you hear a HI-LO chime.
3.At the mid attendant station:	On the mid ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the mid AIP:
	the green light goes off.
	the message CALL AFT L changes to AFT L.
	On the aft left AIP 320RH:
	'#' goes off.
4.Through the handsets at the mid and aft left attendant stations:	Through the handsets at the mid and aft left attendant stations:
make an announcement.	you hear the announcement.
5.At the mid and aft left attendant stations:	On the aft left AIP 320RH:
put the handset back into its cradle.	the message MID goes off.
	On the mid AIP:
	the message AFT L goes off.
6.Repeat the test with the aft right attendant station.	The test follows the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-285-L ** ON A/C NOT FOR ALL

BJ. Do the test of the FORWARD attendant call from the aft attendant stations.

ACTION	RESULT
1.At the aft left attendant station:	On the aft left Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the aft left attendant station:	On the aft left AIP:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off.
	the message FWD ATTND comes on.
	On the forward AIP:
	the message CALL AFT L ATTND comes on.
	the green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the forward Area Call Panels (ACPs):
	the pink indicator lights come on.
3.On the forward attendant station:	On the aft left AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP:
	the message > AFT L ATTND comes on.
	the green indicator light goes off.
	On the forward ACPs:
	the pink indicator lights go off.
4.Through the handsets at the aft left and forward attendant stations:	Through the handsets at the aft left and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the forward attendant station:	On the aft left AIP:
put the handset back into its cradle.	the message > FWD ATTND goes off. the number symbol flashes.
	On the forward AIP:
	the message > AFT L ATTND goes off.
6.On the aft left attendant station:	On the aft AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the aft right attendant station.	The test has the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-286-L ** ON A/C NOT FOR ALL

BK. Do the test of the MID attendant call from the aft attendant stations.

ACTION	RESULT
1.At the aft left attendant station:	On the aft left Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the aft left attendant station:	On the aft left AIP:
push the INTPH pushbutton.	two number symbols flash.
push the MID pushbutton.	two number symbols go off.
	the message MID ATTND comes on.
	On the mid AIP:
	the message CALL AFT L ATTND comes on.
	the green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the mid Area Call Panels (ACPs):
	the pink indicator lights come on.
3.On the mid attendant station:	On the aft left AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the mid AIP:
	the message > AFT L ATTND comes on.
	the green indicator light goes off.
	On the mid ACPs:
	the pink indicator lights go off.
4.Through the handsets at the aft left and mid attendant stations:	Through the handsets at the aft left and mid attendant stations:
make an announcement.	you hear the announcement.
5.On the mid attendant station:	On the aft left AIP:
put the handset back into its cradle.	the message > MID ATTND goes off. the number symbol flashes.
	On the mid AIP:
	the message > AFT L ATTND goes off.
6.On the aft left attendant station:	On the aft left AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the aft right attendant station.	The test has the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-285-V ** ON A/C NOT FOR ALL

BL. Do the Test of the FWD ATTND CALL from the AFT LH and RH ATTND station.

ACTION	RESULT
1.At the AFT LH ATTND station:	On the AFT LH Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the AFT LH ATTND station:	On the AFT LH AIP:
push the FWD ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message FWD ATTND comes on.
	On the FWD AIP:
	the message CALL AFT L ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the FWD Area Call Panels (ACPs):
	the green indicators come on.
3.On the FWD ATTND station:	On the AFT LH AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the FWD AIP:
	the message > AFT L ATTND comes on,
	the green indicator goes off.
	On the FWD ACPs:
	the green indicators go off.
4.Through the handsets at the AFT LH and FWD ATTND station:	Through the handsets at the AFT LH and FWD ATTND station:
do an announcement.	you hear the announcement.
5.On the FWD ATTND station:	On the AFT LH AIP:
put the handset back into its cradle.	the message > FWD ATTND goes off. the number symbol flashes.
	On the FWD AIP:
	the message > AFT L ATTND goes off.
6.On the AFT LH ATTND station:	On the FWD AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH ATTND station.	The test has the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-286-V ** ON A/C NOT FOR ALL

BM. Do the Test of the MID ATTND CALL from the AFT LH and RH ATTND station.

ACTION	RESULT
1.At the AFT LH ATTND station:	On the AFT LH Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the AFT LH ATTND station:	On the AFT LH AIP:
push the MID ATTND pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message MID ATTND comes on.
	On the MID AIP:
	the message CALL MID R ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the MID Area Call Panels (ACPs):
	the green indicators come on.
3.On the MID ATTND station:	On the AFT LH AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the MID AIP:
	the message > AFT L ATTND comes on,
	the green indicator goes off.
	On the MID ACPs:
	the green indicators go off.
4.Through the handsets at the AFT LH and MID ATTND station:	Through the handsets at the AFT LH and MID ATTND station:
do an announcement.	you hear the announcement.
5.On the MID ATTND station:	On the AFT LH AIP:
put the handset back into its cradle.	the message > MID ATTND goes off. the number symbol flashes.
	On the MID AIP:
	the message > AFT L ATTND goes off.
6.On the AFT LH ATTND station:	On the MID AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH ATTND station.	The test has the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-287-G ** ON A/C NOT FOR ALL

BN. Do the test of the EXIT ATTND Call from the AFT ATTND stations.

ACTION	RESULT
1.At the AFT LH ATTND Station:	On AFT LH AIP 320RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:	On the AFT LH AIP 320RH:
push the INTPH pushbutton switch.	'##' comes on.
push the EXIT pushbutton switch.	'##' goes off.
	the message EXIT comes on.
	On the EXIT AIP 320RH/322RH: the green light comes on.
	the message CALL AFT L comes on.
	On the EXIT ACPs 340RH:
	the pink lights come on.
	At all ATTND stations:
	a single HI-LO chime is heard.
3.At the EXIT ATTND station:	On the EXIT ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the EXIT AIP:
	the green light goes off.
	the message CALL AFT L changes to AFT L.
	On the AFT LH AIP 320RH:
	'#' goes off.
4.At the EXIT and AFT LH ATTND stations:	At the EXIT and AFT LH ATTND stations:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
5.At the EXIT and AFT LH ATTND stations:	At the AFT LH AIP 320RH:
put the handset back into its cradle.	the message EXIT goes off.
	At the EXIT AIP:
	the message AFT L goes off.
6.Repeat the test with the AFT RH ATTND station.	The test follows the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-287-Q ** ON A/C NOT FOR ALL

BN. Do the test of the EXIT attendant call from the aft attendant stations.

ACTION	RESULT
1.At the aft left attendant station:	On the aft left Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the aft left attendant station:	On the aft left AIP:
push the INTPH pushbutton.	two number symbols flash.
push the EXIT pushbutton.	two number symbols go off.
	the message EXT ATTND comes on.
	On the exit AIP:
	the message CALL AFT L ATTND comes on.
	the green indicator light comes on.
	At all attendant stations:
	you hear a HI-LO chime.
	On the exit Area Call Panels (ACPs):
	the pink indicator lights come on.
3.At the exit attendant station:	On the aft left AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the exit AIP:
	the message > AFT L ATTND comes on.
	the green indicator light goes off.
	On the exit ACPs:
	the pink indicator lights go off.
4.Through the handsets at the aft left and exit attendant stations:	Through the handsets at the aft left and exit attendant stations:
make an announcement.	you hear the announcement.
5.At the exit attendant station:	On the aft left AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the exit AIP:
	the message > AFT L ATTND goes off.
6.On the aft left attendant station:	On the aft left AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the aft right attendant station.	The test has the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-287-Y ** ON A/C NOT FOR ALL

BN. Do the Test of the EXIT ATTND CALL from the AFT LH and RH ATTND station.

ACTION	RESULT
1.At the AFT LH ATTND station:	On the AFT LH Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the AFT LH ATTND station:	On the AFT LH AIP:
push the INTPH pushbutton.	two number symbols flash.
push the EXIT pushbutton.	two number symbols go off.
	the message EXT ATTND comes on.
	On the exit AIP:
	the message CALL AFT L ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the EXIT Area Call Panels (ACPs):
	the pink indicator comes on.
3.At the EXIT ATTND station:	On the AFT LH AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the EXIT AIP:
	the message > AFT L ATTND comes on,
	the green indicator goes off.
	On the EXIT ACPs:
	the pink indicators go off.
4.Through the handsets at the AFT LH and EXIT ATTND station:	Through the handsets at the AFT LH and EXIT ATTND station:
make an announcement.	you hear the announcement.
5.At the EXIT ATTND station:	On the AFT LH AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the EXIT AIP:
	the message > AFT L ATTND goes off.
6.At the AFT LH ATTND station:	On the AFT LH AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the AFT RH ATTND station.	The test has the same procedure as the test with the AFT LH ATTND station.

Subtask 23-73-00-710-287-AA ** ON A/C NOT FOR ALL

BN. Do the Test of the EXIT ATTND CALL from the AFT LH and RH ATTND station.

ACTION	RESULT
1.At the aft left attendant station:	On the aft left Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the aft left attendant station:	On the aft left AIP:
push the exit attendant pushbutton.	the number symbol goes off.
	the green indicator comes on.
	the message EXT ATTND comes on.
	On the exit AIP:
	the message CALL EXT R ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the EXIT Area Call Panels (ACPs):
	the green indicators come on.
3.On the exit attendant station:	On the aft left AIP:
lift the handset from the cradle.	the message > EXT ATTND comes on.
	On the exit AIP:
	the message > AFT L ATTND comes on,
	the green indicator goes off.
	On the exit ACPs:
	the green indicators go off.
4.Through the handsets at the aft left and exit attendant station:	Through the handsets at the aft left and exit attendant station:
do an announcement.	you hear the announcement.
5.On the exit attendant station:	On the aft left AIP:
put the handset back into its cradle.	the message > EXT ATTND goes off. the number symbol flashes.
	On the exit AIP:
	the message > AFT L ATTND goes off.
6.On the aft left attendant station:	On the exit AIP:
put the handset back into its cradle.	the number symbol goes off.
7.Repeat the test with the aft right attendant station.	The test has the same procedure as the test with the aft left attendant station.

Subtask 23-73-00-710-237-B ** ON A/C NOT FOR ALL

BO. Do the test of the priority function of the EMERGENCY CALL from the cockpit.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the mid attendant station:	On the MID AIP 320RH/322RH:
lift the handset from the cradle.	'#' comes on.
2.On the handset:
push the INTPH pushbutton switch.	On the mid AIP: '##' comes on.
push the FWD pushbutton switch.	'##' goes off. the # FWD message comes on.
	On the forward AIP 320RH:
	the green light comes on.
	the CALL MID R message comes on.
	On the forward ACPs 340RH:
	the pink lights come on.
	At all attendant stations:
	you hear a HI-LO chime.
3.At the forward attendant station:	On the forward ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the forward AIP 320RH:
	the green lights go off.
	the CALL MID R message changes to MID R.
Through the handsets at the forward and mid attendant stations:	Through the handsets at the forward and mid attendant stations:
make an announcement.	you hear the announcement.
4.On the overhead panel 21VU:	On the overhead panel 21VU:
push the EMER CALL ON pushbutton switch.	the CALL ON indicator light in the EMER pushbutton switch flashes.
	On all AIPs:
	the EMERGENCY CALL message flashes.
	the pink lights flashes.
	On all ACPs:
	the pink lights flash.
	From all attendant and passenger loudspeakers:
	you hear three HI-LO chimes.
5.On the Capt audio selector panel:	On the Capt audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the INT/RAD switch in the RAD position.
6.Through the cockpit boomset and the handsets at the forward and mid attendant stations:	Through the cockpit boomset and the handsets at the forward and mid attendant stations:
make an announcement.	you hear the announcement.
7.At the forward and mid attendant stations:	On all AIPs:
put the handsets back on their cradles.	the pink light goes off.
	the EMERGENCY CALL message goes off.
	On the overhead panel 21VU:
	the CALL ON indicator light in the EMER pushbutton switch goes off.
	On all ACPs:
	the pink lights go off.
8.On the Capt audio selector panel:	On the Capt audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-237-O ** ON A/C NOT FOR ALL

BO. Do the test of the priority function of the EMERGENCY call from the cockpit.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off.
	the message FWD ATTND comes on.
	On the forward AIP:
	the message CALL MID R ATTND comes on.
	the green indicator light comes on.
	On the forward Area Call Panels (ACPs):
	the pink indicator lights come on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
3.At the forward attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP:
	the message > MID R ATTND comes on.
	the green indicator light goes off.
	On the forward ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and forward attendant stations:	Through the handsets at the mid and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the CALLS panel 21VU in the cockpit:	On the CALLS panel 21VU in the cockpit:
push the EMER pushbutton.	the integral light of the EMER pushbutton comes on.
	From all attendant and cabin loudspeakers:
	you hear three HI-LO chime.
	On all Area Call Panels (ACPs) :
	the pink indicator lights flash.
	On all Attendant Indication Panels (AIPs) :
	the message CALL EMERGENCY shows.
	EMERGENCY flashes. the pink indicator light flashes.
	On the audio control panel in the cockpit:
	the ATT indicator light flashes.
6.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indicator light goes off.
	On the CALLS panel 21VU in the cockpit:
	the integral light of the EMER pushbutton goes off.
7.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the ATT pushbutton switch.	the integral light of the ATT pushbutton switch comes on.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the RAD/INT switch in the RAD position.
8.Through the handset at the forward and mid attendant stations and the cockpit boomset:	Through the handset at the forward and mid attendant stations and the cockpit boomset:
make an announcement.	you hear a announcement.
9.At the forward and mid attendant stations:	On all AIPs:
put the handsets back on their cradles.	the message > EMERGENCY goes off.
	the pink indicator lights go off.
	On all Area Call Panels (ACPs):
	the pink indicator lights go off.
10.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the RAD/INT switch.
push the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push the ATT pushbutton switch.	the integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-237-P ** ON A/C NOT FOR ALL

BO. Do the test of the priority function of the EMERGENCY CALL from the cockpit.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP) 322RH:
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off.
	the message FWD ATTND comes on.
	On the forward AIP 320RH:
	the message CALL MID R ATTND comes on.
	the green indicator comes on.
	On the forward Area Call Panels (ACPs) 340RH:
	the pink indicator lights come on.
	At the forward attendant station:
	you hear a HI-LO chime.
3.At the forward attendant station:	On the mid AIP 322RH:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP 320RH:
	the message > MID R ATTND comes on.
	the green indicator goes off.
	On the forward ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and forward attendant stations:	Through the handsets at the mid and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the CALLS panel 21VU in the cockpit:	On the CALLS panel 21VU in the cockpit:
push the EMER pushbutton.
	the integral light of the EMER pushbutton comes on.
	In the cabin and at all attendant stations:
	you hear a HI-LO chime three times.
	On all Area Call Panels (ACPs) :
	the pink indicator lights flash.
	On all Attendant Indication Panels (AIPs) :
	the message CALL EMERGENCY shows.
	> EMERGENCY flashes.
	the pink indicator lights flash.
	On the audio control panel in the cockpit:
	the ATT indicator light flashes.
6.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indicator light goes off.
	On the CALLS panel 21VU in the cockpit:
	the integral light of the EMER pushbutton goes off.
7.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the ATT pushbutton switch.	the integral light of the ATT pushbutton switch comes on.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the RAD/INT switch in the RAD position.
8.Through the handset at the forward and mid attendant stations and the cockpit boomset:	Through the handset at the forward and mid attendant stations and the cockpit boomset:
make an announcement.	you hear the announcement.
9.At the forward and mid attendant stations:	On all AIPs:
put the handsets back into their cradles.	the message > EMERGENCY goes off.
	the pink indicator lights go off.
	On all Area Call Panels (ACPs):
	the pink indicator lights go off.
10.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the RAD/INT switch.
push the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the ATT pushbutton switch.	the integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-237-Y ** ON A/C NOT FOR ALL

BO. Do the test of the priority function of the EMERGENCY CALL from the cockpit.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off,
	the message FWD ATTND comes on.
	On the forward AIP:
	the message CALL MID R ATTND comes on,
	the green indicator comes on.
	On the forward Area Call Panels (ACPs):
	the pink indicator lights come on.
	At all attendant stations:
	you hear a HI-LO chime.
3.At the forward attendant station:	On the mid AIP:
lift the handset from the cradle.	the message > FWD ATTND comes on.
	On the forward AIP:
	the message > MID ATTND comes on,
	the green indicator goes off.
	On the forward ACPs:
	the pink indicator lights go off.
4.Through the handsets at the mid and forward attendant stations:	Through the handsets at the mid and forward attendant stations:
make an announcement.	you hear the announcement.
5.On the CALLS panel 21VU in the cockpit:	On the CALLS panel 21VU in the cockpit:
push the EMER pushbutton.	the integral light of the EMER pushbutton comes on.
	From all attendant and cabin loudspeakers: you hear three HI-LO chimes.
	On all ACPs: the pink indicator lights flash.
	On all AIPs: the message > EMERGENCY flashes, the pink indicator flashes.
	On the audio control panel in the cockpit: the ATT indicator flashes.
6.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the CAB pushbutton switch.	the CAB pushbutton-switch integral light comes on.
push the CAB rotary knob.	the CAB rotary-knob integral light comes on.
turn the CAB rotary knob fully cw.
push and hold the RAD/INT switch in the RAD position.
7.Through the forward and mid attendant-station handsets and the cockpit boomset:	Through the forward and mid attendant-station handsets and the cockpit boomset:
make an announcement.	you hear the announcement.
8.At the forward and mid attendant stations:	On all AIPs:
put the handsets back on their cradles.	the message > EMERGENCY goes off,
	the pink indicators go off.
	On all ACPs: the pink indicator lights go off.
	On the CALLS panel 21VU in the cockpit: the integral light of the EMER pushbutton goes off.
9.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the RAD/INT switch.
push to release the CAB rotary knob.	the CAB rotary-knob integral light goes off.
push to release the CAB pushbutton switch.	the CAB pushbutton-switch integral light goes off.

Subtask 23-73-00-710-237-Z ** ON A/C NOT FOR ALL

BO. Do the test of the priority function of the EMERGENCY CALL from the cockpit.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the mid attendant station:	On the mid Attendant Indication Panel (AIP) 320RH/322RH:
Lift the handset from the cradle.	The number symbol flashes.
2.On the keyboard of the handset at the mid attendant station:	On the mid AIP:
Push the FWD ATTND pushbutton.	The number symbol goes off.
	The message FWD ATTND comes on.
	On the forward AIP 320RH:
	The message CALL MID R ATTND comes on.
	The green indicator light comes on.
	On the forward Area Call Panels (ACPs) 340RH:
	The green indicator lights come on.
	Through the loudspeakers at all attendant stations:
	You hear a HI-LO chime.
3.At the forward attendant station:	On the mid AIP:
Lift the handset from the cradle.	The message > FWD ATTND comes on.
	On the forward AIP:
	The message > MID ATTND comes on.
	The green indicator light goes off.
	On the forward ACPs:
	The green indicator lights go off.
4.Through the handsets at the mid and forward attendant stations:	Through the handsets at the mid and forward attendant stations:
Make an announcement.	You hear the announcement.
5.On the CALLS panel 21VU in the cockpit:	On the CALLS panel 21VU in the cockpit:
Push the EMER pushbutton.	The integral light in the EMER pushbutton comes on.
	From all attendant and cabin loudspeakers: You hear a HI-LO chime three times.
	On all Area Call Panels (ACPs) :
	The pink indicator lights flash.
	On all Attendant Indication Panels (AIPs) :
	The message CALL EMERGENCY shows.
	EMERGENCY flashes. The pink indicator lights flash.
	On the audio control panel in the cockpit:
	The ATT indicator light flashes.
6.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
Push and hold the RAD/INT switch in the RAD position.
7.Through the handsets at the forward and mid attendant stations and the cockpit boomset:	Through the handsets at the forward and mid attendant stations and the cockpit boomset:
Make an announcement.	You hear the announcement.
8.At the forward and mid attendant stations:	On all AIPs:
Put the handsets back into their cradles.	The message > EMERGENCY goes off.
	The pink indicator lights go off.
	On all Area Call Panels (ACPs):
	The pink indicator lights go off.
	On the CALLS panel 21VU in the cockpit:
	The integral light in the EMER pushbutton goes off.
	On the audio control panel in the cockpit:
	The ATT indication goes off.
9.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Release the RAD/INT switch.
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.

Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.

NOTE: If more than one attendant station is installed in the mid door area:
The left and right attendant stations cannot accept the same call.
You have to do the related call two times, one station after the other.

Subtask 23-73-00-710-237-AZ ** ON A/C NOT FOR ALL

BO. Do the test of the priority function of the EMERGENCY CALL from the cockpit.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the aft left attendant station:	On the aft Attendant Indication Panel (AIP):
Lift the handset from the cradle.	The number symbol flashes.
2.On the keyboard of the handset at the aft attendant station:	On the aft AIP:
Push the FWD ATTND pushbutton.	The number symbol goes off.
	The message "FWD ATTND L" comes on.
	On the forward AIP:
	The message "CALL AFT L ATTND" comes on.
	The green indicator light comes on.
	On the forward Area Call Panels (ACPs):
	The green indicator lights come on.
	Through the loudspeakers at all attendant stations:
	You hear a HI-LO chime.
3.At the forward attendant station:	On the aft AIP:
Lift the handset from the cradle.	The message "> FWD ATTND L" comes on.
	On the forward AIP:
	The message "> AFT ATTND L" comes on.
	The green indicator light goes off.
	On the forward ACPs:
	The green indicator lights go off.
4.Through the handsets at the aft and forward attendant stations:	Through the handsets at the aft and forward attendant stations:
Make an announcement.	You hear the announcement.
5.On the CALLS panel 21VU in the cockpit:	On the CALLS panel 21VU in the cockpit:
Push the EMER pushbutton.	The integral light of the EMER pushbutton comes on.
	From all attendant and cabin loudspeakers:
	You hear three HI-LO chimes.
	On all Area Call Panels (ACPs):
	The pink indicator lights flash.
	On all Attendant Indication Panels (AIPs):
	The message "CALL EMERGENCY" shows. "EMERGENCY" flashes. The pink indicator lights flash.
	On the audio control panel in the cockpit:
	The ATT indicator light flashes.
6.On the audio control panel in the cockpit:	On the CALLS panel 21VU in the cockpit:
Push the RESET pushbutton.	The integral light of the EMER pushbutton goes off.
	On the audio control panel in the cockpit:
	The ATT indicator light goes off.
7.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
Push and hold the RAD/INT switch in the RAD position.
8.Through the handsets at the forward and aft attendant station and the cockpit boomset:	Through the handsets at the forward and aft attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
9.At the forward and aft attendant stations:	On all AIPs:
Put the handsets back on their cradles.	The message "CALL EMERGENCY" goes off.
	The pink indicator lights go off.
	On all Area Call Panels (ACPs):
	The pink indicator lights go off.
10.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Release the RAD/INT switch.
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.
Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-238-B ** ON A/C NOT FOR ALL

BP. Do the test of the RESET on the cabin handset

NOTE: The test follows the same procedure for all attendant stations.

ACTION	RESULT
1.At the FWD ATTND Station:	On the FWD AIP 320RH:
lift the handset from the cradle.	the '#' comes on.
2.On the handset:	On the FWD AIP 320RH:
push the CAPT pushbutton switch.	the message CAPTAIN comes on.
	On the audio selector panels:
	the ATT indicator light flashes.
	In the cockpit:
	the crew call buzzer is heard for approx. 1 s.
3.On the CAPT audio selector panel:	On the audio selector panels:
push the RESET pushbutton switch.	the ATT indicator light goes off.
4.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
	On the FWD AIP 320RH:
push and hold the INT/RAD switch in the RAD position.	'#' goes off.
5.With the cockpit boomset and at the FWD ATTND station:	In the cockpit boomset and at the FWD ATTND station:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
6.At the FWD ATTND station:	On the FWD AIP 320RH:
push the RESET pushbutton switch.	the message CAPTAIN goes off.
	the '#' comes on.
7.With the cockpit boomset and at the FWD ATTND station:	In the cockpit boomset and at the FWD ATTND station:
do an announcement and listen for the reply.	an announcement is not possible.
8.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.
9.On the FWD ATTND station:	On the FWD AIP 320RH:
push the INTPH pushbutton switch.	'##' comes on.
push the MID pushbutton switch.	the '##' goes off.
	the message MID comes on.
	On the MID AIP 320RH/322RH: the green light comes on.
	the message CALL FWD L comes on.
	On the MID ACPs 340RH:
	the pink light comes on.
	At all ATTND stations:
	a single HI-LO chime is heard.
10.At the MID ATTND station:	On the MID ACPs 340RH:
lift the handset from the cradle.	the pink lights go off.
	On the MID AIP 320RH/322RH:
	the green light goes off.
	the message CALL FWD L changes to FWD L.
	On the FWD AIP 320RH:
	'#' symbol goes off.
11.At the FWD and MID ATTND stations:	At the FWD and MID ATTND stations:
do an announcement and listen for the reply.	the announcement and reply are correct and clear.
12.At the FWD and MID ATTND stations:	On the MID AIP 320RH/322RH:
put the handset back to the cradle.	the message FWD L goes off.
	On the FWD AIP 320RH:
	the message MID goes off.

Subtask 23-73-00-710-238-L ** ON A/C NOT FOR ALL

BP. Do the test of the RESET on the cabin handsets.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the CAPT pushbutton.	the number symbol goes off,
	the message CAPTAIN comes on.
	Through the loudspeakers in the cockpit:
	the BUZZER operates for approx. 1 sec.
	On the audio control panel in the cockpit:
	the ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton,	the ATT indication goes off.
push the CAB pushbutton switch.	the CAB pushbutton-switch integral light comes on.
push the CAB rotary knob.	the CAB rotary-knob integral light comes on.
turn the CAB rotary knob fully cw.
	On the forward AIP:
push and hold the RAD/INT switch in the RAD position.	the message > CAPTAIN comes on.
4.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
5.On the forward attendant station handset:	On the forward AIP:
push the RESET pushbutton switch.	the message > CAPTAIN goes off.
	RST flashes one time and goes off.
	the number symbol flashes.
6.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
make an announcement.	you do not hear the announcement.
put the handset back into its cradle.	the number symbol goes off.
7.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the INT/RAD switch.
push to release the CAB rotary knob.	the CAB rotary knob integral light goes off.
push to release the CAB pushbutton switch.	the CAB pushbutton switch integral light goes off.
8.At the forward attendant station:	On the forward AIP:
lift the handset from the cradle.	the number symbol flashes.
9.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the INTPH pushbutton.	two number symbols flash,
push the MID pushbutton.	two number symbols go off,
	the message MID ATTND comes on.
	On the mid AIP:
	the message CALL FWD L ATTND comes on,
	the green indicator comes on.
	Through the loudspeakers at all attendant stations:
	you hear a HI-LO chime.
	On the mid Area Call Panels (ACPs):
	the pink indicators come on.
10.On the mid attendant station:	On the forward AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the mid AIP:
	the message > FWD L ATTND comes on,
	the green indicator goes off.
	On the mid ACPs:
	the pink indicators go off.
11.Through the handsets at the forward and mid attendant station:	Through the handsets at the forward and mid attendant station:
make an announcement.	you hear the announcement.
12.On the mid attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > MID ATTND goes off.
	the number symbol flashes.
	On the mid AIP:
	the message > FWD L ATTND goes off.
13.On the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-238-M ** ON A/C NOT FOR ALL

BP. Do the test of the RESET on the cabin handsets.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward left Attendant Indication Panel (AIP) 320RH:
lift the handset from the cradle.	the number symbol flashes.

2.On the handset at the forward attendant station:	On the forward left AIP 320RH:
push the CAPT pushbutton.	the number symbol goes off.
	the message CAPTAIN comes on.

	Through the loudspeakers in the cockpit:
	the BUZZER operates for approx. 1 sec.

	On the audio control panel in the cockpit:
	the ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indication goes off.
push the ATT pushbutton switch.	the integral light of the ATT pushbutton switch comes on.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
push and hold the RAD/INT switch in the RAD position.
	On the forward left AIP:
	the message > CAPTAIN comes on.
4.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
make an announcement.	you hear the announcement.
5.On the forward attendant-station handset:	On the forward left AIP:
push the RESET pushbutton.	the message > CAPTAIN goes off.
	RST flashes one time and goes off.
	the number symbol flashes.

6.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
make an announcement.	you do not hear the announcement.
7.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the INT/RAD switch.
push the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the ATT pushbutton switch.	the integral light of the ATT pushbutton switch goes off.
8.On the forward attendant station handset:	On the forward left AIP:
push the INTPH pushbutton.	two number symbols flash.
push the MID pushbutton.	two number symbols go off.
	the message MID ATTND comes on.

	On the mid AIP 322RH:
	the message CALL FWD L ATTND comes on.
	the green indicator light comes on.

	At the mid attendant station:
	you hear a HI-LO chime.

	On the mid Area Call Panels (ACP) 340RH:
	the pink indicator lights come on.
9.On the mid attendant station:	On the forward left AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.

	On the mid AIP 322RH:
	the message > FWD L ATTND comes on.
	the green indicator light goes off.

	On the mid ACPs:
	the pink indicator lights go off.

Through the handsets at the forward and mid attendant stations:	Through the handsets at the forward and mid attendant stations:
make an announcement.	you hear the announcement.
10.At the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the message > FWD L ATTND goes off.
	On the forward left AIP:
	the number symbol flashes.
11.At the forward attendant station:	On the forward left AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-238-W ** ON A/C NOT FOR ALL

BP. Do the test of the RESET on the cabin handsets.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP) 320RH:
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the CAPT pushbutton.	the number symbol goes off.
	the message CAPTAIN comes on.
	Through the loudspeakers in the cockpit:
	the BUZZER operates for approx. 1 sec.
	On the audio control panel in the cockpit:
	the ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indication goes off.
push the ATT pushbutton switch.	the integral light of the ATT pushbutton-switch comes on.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
	On the forward AIP:
push and hold the RAD/INT switch in the RAD position.	the message > CAPTAIN comes on.
4.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
5.On the forward attendant-station handset:	On the forward AIP:
push the RESET pushbutton switch.	the message > CAPTAIN goes off.
	RST flashes one time and goes off.
	the number symbol flashes.
6.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
make an announcement.	you do not hear the announcement.

7.At the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.
8.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the INT/RAD switch.
push the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the ATT pushbutton switch.	the integral light of the ATT pushbutton switch goes off.
9.At the forward attendant station:	On the forward AIP:
lift the handset from the cradle.	the number symbol flashes.
10.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the MID ATTND pushbutton.	the number symbol goes off.
	the message MID ATTND comes on.
	On the mid AIP:
	the message CALL FWD L ATTND comes on.
	the green indicator light comes on.
	At all attendant stations:
	you hear a single HI-LO chime.
	On the mid Area Call Panels (ACPs):
	the green indicator lights come on.
11.On the mid attendant station:	On the forward AIP:
lift the handset from the cradle.	the message > MID ATTND comes on.
	On the mid AIP:
	the message > FWD L ATTND comes on.
	the green indicator light goes off.
	On the mid ACPs:
	the green indicator lights go off.
12.Through the handsets at the forward and mid attendant stations:	Through the handsets at the forward and mid attendant stations:
make an announcement.	you hear the announcement.
13.On the mid attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > MID ATTND goes off.
	the number symbol flashes.
	On the mid AIP:
	the message > FWD L ATTND goes off.
14.On the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the number symbol goes off.

Subtask 23-73-00-710-238-AY ** ON A/C NOT FOR ALL

BP. Test of the RESET on the Cabin Handsets.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
Lift the handset from the cradle.	The number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
Push the CAPT pushbutton.	The number symbol goes off.
	The message "CAPTAIN" comes on.
	Through the loudspeakers in the cockpit:
	The BUZZER operates for approx. 1 sec.
	On the audio control panel in the cockpit:
	The ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the RESET pushbutton.	The ATT indication goes off.
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The CAB pushbutton-switch integral light comes on.
Turn the CAB rotary knob fully cw.
	On the forward AIP:
Push and hold the RAD/INT switch in the RAD position.	The message "> CAPTAIN" comes on.
4.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
5.On the forward attendant-station handset:	On the forward AIP:
Push the RESET pushbutton switch.	The message "> CAPTAIN" goes off. RST flashes one time and goes off. The number symbol flashes.
6.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
Make an announcement.	You do not hear the announcement.
Put the handset back into its cradle.	The number symbol goes off.

7.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Release the INT/RAD switch.
Push to release the CAB rotary knob.	The CAB pushbutton-switch integral light goes off.
Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.
8.At the forward attendant station:	On the forward AIP:
Lift the handset from the cradle.	The number symbol flashes.
9.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
Push the AFT ATTND L pushbutton.	The number symbol goes off.
	The message "AFT ATTND L" comes on.
	On the aft AIP:
	The message "CALL AFT L ATTND" comes on.
	The green indicator light comes on.
	Through the loudspeakers at all attendant stations:
	You hear a HI-LO chime.
	On the aft Area Call Panels (ACPs):
	The green indicator lights come on.
10.At the aft attendant station:	On the forward AIP:
Lift the handset from the cradle.	The message "> AFT ATTND L" comes on.
	On the aft AIP:
	The message "> FWD ATTND L" comes on.
	The green indicator light goes off.
	On the aft ACPs:
	The green indicator lights go off.
11.Through the handsets at the forward and aft attendant stations:	Through the handsets at the forward and aft attendant stations:
Make an announcement.	You hear the announcement.
12.At the aft attendant station:	On the forward AIP:
Put the handset back into its cradle.	The message "> AFT ATTND L" goes off. The number symbol flashes.
	On the aft AIP:
	The message "> FWD ATTND L" goes off.
13.At the forward attendant station:	On the forward AIP:
Put the handset back into its cradle.	The number symbol goes off.

Subtask 23-73-00-710-239-A ** ON A/C NOT FOR ALL

BQ. Do the test of the engage annunciation

NOTE: The test follows the same procedure for all attendant stations.

ACTION	RESULT
1.At the FWD ATTND Station:	On the FWD AIP 320RH:
lift the handset from the cradle.	the '#' comes on.
2.On the handset:	On the FWD AIP 320RH:
push the CAPT pushbutton switch.	the message CAPTAIN comes on.
	On the audio selector panels:
	the ATT indicator light flashes.
	In the cockpit:
	the crew call buzzer is heard for approx. 1 s.
3.On the CAPT audio selector panel:	On the audio selector panels:
push the RESET pushbutton switch.	the ATT indicator light goes off.
4.On the CAPT audio selector panel:	On the CAPT audio selector panel:
push the CAB pushbutton switch.	the integral light of the CAB pushbutton switch comes on.
push the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
	On the FWD AIP 320RH:
push and hold the INT/RAD switch in the RAD position.	'#' goes off.
5.With the cockpit boomset and at the FWD ATTND station:	In the cockpit boomset and at the FWD ATTND station:
do an announcement and listen for the reply.	the announcement and the reply are correct and clear.
6.At the MID ATTND station:	On the MID AIP 322RH:
lift the handset from the cradle.	the '#' comes on.
push the INTPH pushbutton switch.	'##' comes on.
push the FWD pushbutton switch.	the '##' goes off.
	the message BUSY comes on.
7.With the cockpit boomset and at the FWD and MID ATTND stations:	In the cockpit boomset and at the FWD and MID ATTND stations:
do an announcement and listen for the reply.	only the announcement and the reply from the cockpit boomset and the FWD ATTND handset are correct and clear.
8.At the FWD and MID ATTND stations:	On the MID AIP 320RH/322RH:
put the handset back to the cradle.	the message BUSY goes off.
	On the FWD AIP 320RH:
	the message CAPTAIN goes off.
9.On the CAPT audio selector panel:	On the CAPT audio selector panel:
release the INT/RAD switch.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the CAB pushbutton switch.	the integral light of the CAB pushbutton switch goes off.

Subtask 23-73-00-710-239-C ** ON A/C NOT FOR ALL

BQ. Do the Test of the engage annunciation.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP) 320RH:
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP 320RH:
push the CAPT pushbutton.	the number symbol goes off.
	the message CAPTAIN comes on.
	Through the loudspeakers in the cockpit:
	the BUZZER operates for approx. 1 sec.
	On the audio control panel in the cockpit:
	the ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indication goes off.
push the ATT pushbutton switch.	the integral light of the ATT pushbutton switch comes on.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
	On the forward AIP 320RH:
push and hold the RAD/INT switch to the RAD position.	the message > CAPTAIN comes on.
4.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
5.At the mid attendant station.	On the mid AIP 322RH:
lift the handset from the cradle.	the number symbol flashes.
6.On the keyboard of the handset at the mid attendant station:
push the FWD ATTND pushbutton.	the number symbol goes off.
	the message BUSY FWD ATT comes on.
7.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
8.At the mid attendant station:	On the mid AIP 322RH:
put the handset back into its cradle.	the message BUSY FWD ATT goes off.
9.At the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > CAPTAIN goes off.
10.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the INT/RAD switch.
push the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the ATT pushbutton switch.	the integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-239-D ** ON A/C NOT FOR ALL

BQ. Do the test of the ENGAGE ANNUNCIATION.

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP) 320RH:
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
push the CAPT pushbutton.	the number symbol goes off.
	the message CAPTAIN comes on.
	Through the loudspeakers in the cockpit:
	the BUZZER operates for approx. 1 sec.
	On the audio control panel in the cockpit:
	the ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
push the RESET pushbutton.	the ATT indication goes off.
push the ATT pushbutton switch.	the integral light of the ATT pushbutton switch comes on.
push to release the CAB rotary knob.	the integral light of the CAB rotary knob comes on.
turn the CAB rotary knob fully cw.
	On the forward AIP:
push and hold the RAD/INT switch in the RAD position.	the message > CAPTAIN comes on.
4.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
5.At the mid attendant station:	On the mid AIP 322RH:
lift the handset from the cradle.	the number symbol flashes.
6.On the keyboard of the handset at the mid attendant station:
push the INTPH pushbutton.	two number symbols flash.
push the FWD pushbutton.	two number symbols go off.
	the message BUSY FWD ATT comes on.
7.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
make an announcement.	you hear the announcement.
8.At the mid attendant station:	On the mid AIP:
put the handset back into its cradle.	the message BUSY FWD ATT goes off.
9.At the forward attendant station:	On the forward AIP:
put the handset back into its cradle.	the message > CAPTAIN goes off.
10.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
release the INT/RAD switch.
push the CAB rotary knob.	the integral light of the CAB rotary knob goes off.
push to release the ATT pushbutton switch.	the integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-239-L ** ON A/C NOT FOR ALL

BQ. Test of the ENGAGE ANNUNCIATION

NOTE: The test has the same procedure for all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
Lift the handset from the cradle.	The number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
Push the CAPT pushbutton.	The number symbol goes off.
	The message "CAPTAIN" comes on.
	Through the loudspeakers in the cockpit:
	The BUZZER operates for approx. 1 sec.
	On the audio control panel in the cockpit:
	The ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the RESET pushbutton.	The ATT indication goes off.
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
	On the forward AIP:
Push and hold the RAD/INT switch in the RAD position.	The message "> CAPTAIN" comes on.
4.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
5.At the aft attendant station:	On the aft AIP:
Lift the handset from the cradle.	The number symbol flashes.
6.On the keyboard of the handset at the aft attendant station:
Push the FWD ATTND pushbutton.	The number symbol goes off.
	The message "BUSY FWD ATT" comes on.
7.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
8.At the aft attendant station:	On the aft AIP:
Put the handset back into its cradle.	The message "BUSY FWD ATT" goes off.
9.At the forward attendant station:	On the forward AIP:
Put the handset back into its cradle.	The message "> CAPTAIN" goes off.
10.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Release the INT/RAD switch.
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.
Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-337-A ** ON A/C NOT FOR ALL

BR. Test of the EMERGENCY Call from the Cockpit

ACTION	RESULT
1.In the cockpit, on overhead panel 21VU:	In the cockpit, on overhead panel 21VU:
Push the EMER pushbutton switch.	The CALL ON indicator light in the EMER pushbutton switch flashes.

	In the cabin and at all attendant stations:
	You hear three HI-LO chimes.

	On all Area Call Panels (ACP):
	The pink indicator lights flash.

	On all Attendant Indication Panels (AIP):
	The message 'CALL EMERGENCY' comes on.
	EMERGENCY flashes.
	The pink indicator light flashes.

	In the cockpit, on the audio control panel:
	the ATT indication flashes.
2.In the cockpit, on the audio control panel:	In the cockpit, on overhead panel 21VU:
Push the RESET pushbutton.	The CALL ON indicator light in the EMER pushbutton switch goes off.

	In the cockpit, on the audio control panel:
	The ATT indication goes off.
3.At the forward attendant station:	On the forward left AIP:
Lift the handset from the cradle.	> EMERGENCY flashes.
	The pink indicator light goes off.
4.In the cockpit, on the audio control panel:	In the cockpit, on the audio control panel:
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
Push and hold the INT/RAD switch to the RAD position.
5.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
Make an announcement.	You hear the announcement.
6.In the cockpit, on the audio control panel:
Release the INT/RAD switch.

7.For all other attendant stations in the cabin, make sure that:
You can accept the call.
The indications on the related AIPs are the same as on the forward attendant station.
You hear the announcement from the cockpit and the other attendant station.
The cockpit and the other attendant stations can hear the announcement from that attendant station.
8.At the related attendant station:	On the related AIP:
Lift the handset from the cradle.	> EMERGENCY flashes.
	On the related ACP:
	The pink indicator light goes off.
9.In the cockpit, on the audio control panel:
Push and hold the INT/RAD switch to the RAD position.
10.Through the handsets at the forward attendant station and the related attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
11.At the related attendant station:	On the related AIP:
Put the handset back into its cradle.	> EMERGENCY goes off.
12.In the cockpit, on the audio control panel:
Release the INT/RAD switch.
13.Repeat the steps 8 thru 12 for the next attendant station.
14.When you lift the handset from the cradle on the last attendant station in the cabin:	On all ACPs:

All attendant stations have accepted the call.	The pink indicator lights go off.
15.At the forward attendant station:	On the forward AIP:
Put the handset back into its cradle.	> EMERGENCY goes off.
16.In the cockpit, on the audio control panel:	In the cockpit, on the audio control panel:
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.

Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-338-A ** ON A/C NOT FOR ALL

BS. Do the test of the ALL attendant call function from the cockpit.

ACTION	RESULT
1.In the cockpit, on the audio control panel:	In the cockpit, on the audio control panel:
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
2.In the cockpit, on the overhead panel 21VU:	At all attendant stations:
Push the ALL pushbutton.	You hear a single HI-LO chime.

	On all Area Call Panels (ACP) 340RH:
	The pink indicator lights come on.

	On all Attendant Indication Panels (AIP) 320RH/322RH:
	The message CALL ALL ATTND shows.
	The green indicator light comes on.
3.At the forward attendant station:	On the forward left AIP:
Lift the handset from the cradle.	The message > ALL ATTND shows.
	The green indicator light goes off.
4.In the cockpit, on the audio control panel:
Push and hold the INT/RAD switch to the RAD position.
5.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
Make an announcement.	You hear the announcement.
6.In the cockpit, on the audio control panel:
Release the INT/RAD switch.
7.For all other attendant stations in the cabin, make sure that:
You can accept the call.
The indications on the related AIPs are the same as on the forward attendant station.
You hear the announcement from the cockpit and the other attendant stations.
The cockpit and the other attendant stations can hear the announcement from that attendant station.
8.At the related attendant station:	On the related AIP:
Lift the handset from the cradle.	The message > ALL ATTND shows.
	The green indicator light goes off.
9.In the cockpit, on the audio control panel:
Push and hold the INT/RAD switch to the RAD position.
10.Through the handsets at the forward attendant station and the related attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
11.At the related attendant station:	On the related AIP:
Put the handset back into its cradle.	The message > ALL ATTND goes off.
12.In the cockpit, on the audio control panel:
Release the INT/RAD switch.
13.Repeat the steps 8 thru 12 for the next attendant station.
14.When you lift the handset from the cradle on the last attendant station in the cabin:	On all ACPs:
All attendant stations have accepted the call.	The pink indicator lights go off.
15.At the forward attendant station:	On the forward AIP:
Put the handset back into its cradle.	The message > ALL ATTND goes off.
16.In the cockpit, on the audio control panel:	In the cockpit, on the audio control panel:
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-339-A ** ON A/C NOT FOR ALL

BT. Test of the ATTENDANT CALL from the Cockpit

ACTION	RESULT
1.On CALLS panel 21VU in the cockpit:	At the forward attendant station:
Push the FWD pushbutton switch.	You hear a HI-LO chime.
	On the forward AIP:
	The message "CALL CAPTAIN" comes on.
	The green indicator light comes on.
	On the forward ACPs:
	The pink indicator lights come on.
2.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
3.At the forward attendant station:	On the forward AIP:
Lift the handset from the cradle.	The message "> CAPTAIN" comes on.
	The green indicator goes off.
	On the forward ACPs:
	the pink indicator lights go off.
4.On the audio control panel in the cockpit:
Push and hold the RAD/INT switch to the RAD position.
5.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
6.At the forward attendant station:	On the forward AIP 320RH:
Put the handset back into its cradle.	The message "> CAPTAIN" goes off.
7.On the audio control panel in the cockpit:
Release the RAD/INT switch.
8.Repeat the steps 1 and 3 thru 7 for all other attendant stations:	The indications are the same as for the forward attendant station.
Use the MID pushbutton to call the mid attendant station(s) (if applicable).
Use the EXIT pushbutton to call the exit attendant station(s) (if applicable).
NOTE: If more than one attendant station is installed in the mid and/or exit door areas: The left and right attendant stations cannot accept the same call. You have to do the related call two times, one station after the other.
Use the AFT pushbutton to call each aft attendant station one station after the other.
9.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.
Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-339-D ** ON A/C NOT FOR ALL

BT. Test of the ATTENDANT CALL from the Cockpit

ACTION	RESULT
1.On CALLS panel 21VU in the cockpit:	At all attendant stations:
Push the FWD pushbutton.	You hear a HI-LO chime.
	On the forward AIP:
	The message "CALL CAPTAIN" comes on.
	The green indicator light comes on.
	On the forward ACPs:
	The pink indicator lights come on.
2.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
3.At the forward attendant station:	On the forward AIP:
Lift the handset from the cradle.	The message "> CAPTAIN" comes on.
	The green indicator light goes off.
	On the forward ACPs:
	The pink indicator lights go off.
4.On the audio control panel in the cockpit:
Push and hold the RAD/INT switch in the RAD position.
5.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
6.At the forward attendant station:	On the forward AIP:
Put the handset back into its cradle.	The message "> CAPTAIN" goes off.
7.On the audio control panel in the cockpit:
Release the RAD/INT switch.
8.Repeat the steps 1 and 3 thru 7 for all other attendant stations:	The indications are the same as for the forward attendant station.
Use the MID pushbutton to call the mid attendant station(s) (if applicable).
Use the EXIT pushbutton to call the exit attendant station(s) (if applicable).
Use the AFT pushbutton to call each aft attendant station one station after the other.
9.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.
Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.

Subtask 23-73-00-710-340-A ** ON A/C NOT FOR ALL

BU. Test of the CAPT CALL from all Attendant Stations

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
Lift the handset from the cradle.	The number symbol flashes.
	Through the handset at the forward attendant station:
	You hear the dial tone.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
Push the CAPT pushbutton.	The number symbol goes off.
	The message 'CAPTAIN' comes on.
	Through the handset at the forward attendant station:
	The dial tone stops.
	The call tone starts.
	Through the loudspeakers in the cockpit:
	The BUZZER operates for approx. 1 sec.
	On the audio control panel in the cockpit:
	The ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the RESET pushbutton.	The ATT indication goes off.
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
	On the forward AIP:
Push and hold the RAD/INT switch to the RAD position.	The message '> CAPTAIN' comes on.
	Through the handset at the forward attendant station:
	The call tone stops.
4.Through the handset at the forward attendant station and the cockpit boomset:	Through the handset at the forward attendant station and the cockpit boomset:
Make an announcement.	You hear the announcement.
5.At the forward attendant station:	On the forward AIP:
Put the handset back into its cradle.	The message '> CAPTAIN' goes off.
6.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Release the INT/RAD switch.
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.
Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.

7.Repeat the steps 1 thru 6 for all other attendant stations.	The indications are the same as for the CAPT CALL from the forward attendant station.

Subtask 23-73-00-710-341-B ** ON A/C NOT FOR ALL

BV. Do the Test of the ALL CALL from all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP) 320RH:
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP 320RH:
push the INTPH pushbutton.	two number symbols flash.
push the ALL pushbutton.	two number symbols go off.
	the message ALL ATTND comes on.
	On all AIPs except forward AIP 320RH:
	the message CALL ALL ATTND comes on.
	the green indicator lights come on.
	On all Area Call Panels (ACPs):
	the pink indicator lights come on.
	At all attendant stations:
	you hear a single HI-LO chime.
3.At all other attendant stations:	On all AIPs:
lift the handset from the cradle.	the message > ALL ATTND comes on.
	On all AIPs except forward AIP:
	the green indicator lights go off.
	On all ACPs:
	the pink indicator lights go off.
4.Through the handsets at all attendant stations:	Through the handsets at all attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handsets back to the cradle.	the message > ALL ATTND goes off.

6.Repeat the steps 1 thru 5 for all other attendant stations:	the indications are the same as for the ALL CALL from the forward attendant station.

Subtask 23-73-00-710-342-B ** ON A/C NOT FOR ALL

BW. Test of the ATTND CALL Function from the other Attendant Stations

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
Lift the handset from the cradle.	The number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP:
Push the INTPH pushbutton.	Two number symbols flash.
Push the pushbutton for another attendant station.	Two number symbols go off.
	The message "XYZ ATTND" comes on.
	NOTE: The "XYZ" stands for the called attendant station.
	On the respective AIP:
	The message "CALL FWD L ATTND" comes on.
	The green indicator light comes on.
	At the XYZ attendant station:
	Yyou hear a HI-LO chime.
	On the respective Area Call Panels (ACPs):
	The pink indicator lights come on.
3.On the XYZ attendant station:	On the forward AIP:
Lift the handset from the cradle.	The message "> XYZ ATTND" comes on.
	On the XYZ AIP:
	The message "> FWD L ATTND" comes on.
	The green indicator light goes off.
	On the XYZ ACPs:
	The pink indicator lights go off.
4.Through the handsets at the forward and xyz attendant station:	Through the handsets at the forward and xyz attendant station:
Make an announcement.	You hear the announcement.
5.On the XYZ attendant station:	On the forward AIP:,
Put the handset back into its cradle.	The message "> XYZ ATTND" goes off.
	The number symbol flashes.
	On the XYZ AIP:
	the message "> FWD L ATTND" goes off.
6.On the forward attendant station:	On the forward AIP:
Put the handset back into its cradle.	The number symbol goes off.

7.Repeat the steps 1 thru 6 for all other attendant stations:	The indications are the same as for the forward attendant station and the corresponding attendant station.
Use the INTPH and FWD pushbutton to call the forward attendant station from all other attendant stations.
Use the INTPH and MID pushbutton to call the mid attendant station(s) from all other attendant stations (if applicable).
Use the INTPH and EXIT pushbutton to call the exit attendant station(s) from all other attendant stations (if applicable).
NOTE: If more than one attendant station is installed in the mid and/or exit door area:
The left and right attendant stations cannot accept the same call.
You have to do the related call two times, one station after the other.
Use the INTPH and AFT pushbutton to call each aft attendant station one station after the other from all other attendant station(s).

Subtask 23-73-00-710-341-E ** ON A/C NOT FOR ALL

BX. Do the Test of the ALL CALL from all attendant stations.

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP) 320RH:
lift the handset from the cradle.	the number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP 320RH:
push the ALL ATTND pushbutton.	the number symbol goes off.
	the message ALL ATTND comes on.
	On all AIPs except forward AIP 320RH:
	the message CALL ALL ATTND comes on.
	the green indicator lights come on.
	On all Area Call Panels (ACPs):
	the green indicator lights come on.
	At all attendant stations:
	you hear a HI-LO chime.
3.At all other attendant stations:	On all AIPs:
lift the handsets from their cradles.	the message > ALL ATTND comes on.
	On all AIPs except forward AIP:
	the green indicator lights go off.
	On all ACPs:
	the green indicator lights go off.
4.Through the handsets at all attendant stations:	Through the handsets at all attendant stations:
make an announcement.	you hear the announcement.
5.At all attendant stations:	On all AIPs:
put the handsets back into their cradles.	the message > ALL ATTND goes off.

6.Repeat the steps 1 thru 5 for all other attendant stations:	the indications are the same as for the ALL CALL from the forward attendant station.

Subtask 23-73-00-710-342-E ** ON A/C NOT FOR ALL

BY. Test of the ATTND CALL Function from the other Attendant Stations

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP) 320RH:
Lift the handset from the cradle.	The number symbol flashes.
2.On the keyboard of the handset at the forward attendant station:	On the forward AIP 320RH:
Push the pushbutton for another attendant station.	The number symbol goes off.
	The message XYZ ATTND comes on.
	NOTE: XYZ stands for the called attendant station.
	On the respective AIP 320RH/322RH:
	The message CALL FWD L ATTND comes on.
	The green indicator light comes on.
	At all attendant stations:
	You hear a HI-LO chime.
	On the respective Area Call Panels (ACPs) 340RH:
	The green indicator lights come on.
3.On the xyz attendant station:	On the forward AIP 320RH:
Lift the handset from the cradle.	The message > XYZ ATTND comes on.
	On the xyz AIP 320RH/322RH:
	The message > FWD L ATTND comes on.
	The green indicator light goes off.
	On the xyz ACPs 340RH:
	The green indicator lights go off.
4.Through the handsets at the forward and xyz attendant station:	Through the handsets at the forward and xyz attendant station:
Make an announcement.	You hear the announcement.
5.On the xyz attendant station:	On the forward AIP 320RH:
Put the handset back into its cradle.	The message > XYZ ATTND goes off.
	The number symbol flashes.
	On the xyz AIP 320RH/322RH:
	The message > FWD L ATTND goes off.
6.On the forward attendant station:	On the forward AIP 320RH:
Put the handset back into its cradle.	The number symbol goes off.

7.Repeat the steps 1 thru 6 for all other attendant stations:	The indications are the same as for the forward attendant station and the corresponding attendant station.
Use the FWD ATTND pushbutton to call the forward attendant station from all other attendant stations.
Use the MID ATTND pushbutton to call the mid attendant station(s) from all other attendant stations (if applicable).
Use the EXIT ATTND pushbutton to call the exit attendant station(s) from all other attendant stations (if applicable).
NOTE: If more than one attendant station is installed in the mid and/or exit door area:
The left and right attendant stations cannot accept the same call.
You have to do the related call two times, one station after the other.
Use the AFT ATTND pushbutton to call each aft attendant station one station after the other from all other attendant station(s).

Subtask 23-73-00-710-343-A ** ON A/C NOT FOR ALL

BZ. Test of the EMERGENCY Call from all Attendant Stations

ACTION	RESULT
1.At the forward attendant station:	On the forward Attendant Indication Panel (AIP):
Lift the handset from the cradle.	The number symbol flashes.
2.On the keyboard of the forward attendant-station handset:	On the forward AIP:
Push the EMER CALL pushbutton.	The number symbol goes off.
	The message 'EMER CALL' flashes.
	Through the loudspeakers in the cockpit:
	The BUZZER operates three times.
	On CALLS panel 21VU in the cockpit:
	The light in the EMER pushbutton flashes.
	On the audio control panel in the cockpit:
	The ATT indication flashes.
3.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the RESET pushbutton.	The ATT indication goes off.
	On CALLS panel 21VU in the cockpit:
	The light in the EMER pushbutton goes off.
4.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Push the ATT pushbutton switch.	The integral light of the ATT pushbutton switch comes on.
Push to release the CAB rotary knob.	The integral light of the CAB rotary knob comes on.
Turn the CAB rotary knob fully cw.
5.On the audio control panel in the cockpit:	On the forward AIP:
Push and hold the RAD/INT switch to the RAD position.	The message '> EMER CALL' comes on.
	On the handset at the forward attendant station:
	The call tone stops.
6.Through the forward attendant-station handset and the cockpit boomset:	Through the forward attendant-station handset and the cockpit boomset:
Make an announcement.	You hear the announcement.
7.At the forward attendant station:	On the forward AIP:
Put the handset back into its cradle.	The message '> EMER CALL' goes off.
8.On the audio control panel in the cockpit:	On the audio control panel in the cockpit:
Release the INT/RAD switch.
Push the CAB rotary knob.	The integral light of the CAB rotary knob goes off.
Push to release the ATT pushbutton switch.	The integral light of the ATT pushbutton switch goes off.
9.Repeat the steps 1 thru 8 for all other attendant stations:	The indications are the same as for the EMERGENCY CALL from the forward attendant station.

5. Close-up
Subtask 23-73-00-860-116-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] 2026.03.31 23:17:13 UTC