-
the CAB rotary-knob integral light comes on.

In the cockpit and at the AFT LH attendant station:
-
the message and the reply are correctand clear.

On the FWD LH AIP 320RH:

-
the CNCL AFT L message goes off.

On the AFT LH AIP 320RH:

-
the OVER CAPTAIN message goes off.

 On the AFT RH AIP 320RH:

 -
the CALL CAPTAIN message goes off.On the Capt audio selector panel:

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ACTION RESULT -------------------------------------------------------------------------------
-
push to release the CAB rotary  - the CAB rotary-knob integral light knob. goes off.

 -
push to release the CAB  - the CAB pushbutton-switch integral pushbutton switch. light goes off.

 **ON A/C 151-199,
 Subtask 23-73-00-710-163-B
 P. Do the test of the priority function of the attendant call from the
 cockpit.

 NOTE : The test has the same procedure for all attendant stations.
____
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. At the aft LH attendant station:
-lift the handset from the cradle.
 2. On the aft LH attendant station handset:
 -
push the INTPH pushbutton.

-
push the FWD pushbutton.

On the aft LH Attendant Indication Panel (AIP):
-the indication '#' shows.
On the aft LH AIP:
 -
the indication '##' shows.

-
the indication '##' goes off.

 -
the message '# FWD' shows. On the forward LH AIP:

 -
the green indicator comes on.

 -
the message 'CALL AFT L' comes on.

 On the forward LH Area Call Panel (ACP):
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ACTION RESULT -------------------------------------------------------------------------------
3. At the forward attendant station:
-lift the handset from the
cradle.

 -make an announcement.
4. On the CALLS panel 21VU in the cockpit:
 -push the AFT pushbutton.
5. Through the forward and aft LH attendant station handset:
-make an announcement.
6. On the audio control panel in the cockpit:
-the pink indicators come on. At all attendant stations:
 -you hear a single HI-LO chime.On the forward LH ACP:
-
the pink indicators go off.

 On the forward LH AIP:

 -
the green indicator goes off.

 -
the message 'CALL AFT L' message changes to 'AFT L'.

 Through the forward and aft LH attendant station handset:
-you hear the announcement.On the aft LH AIP:
-
the message 'OVER CAPTAIN' shows. On the forward LH AIP:

 -
the message 'AFT L' changes to 'CNCL'.

 At all attendant stations:
 -
you hear a single HI-LO chime.

Through the forward and aft LHattendant station handset:

-
you do not hear the announcement.

On the audio control panel in thecockpit:
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ACTION RESULT -------------------------------------------------------------------------------
-
push the CAB pushbutton switch.

-
push the CAB rotary knob.

-turn the CAB rotary knob fully cw.
 -push and hold the INT/RAD switch in the RAD position.
 7. Through the aft LH attendant station handset and the cockpit boomset:
 -make an announcement.
8. At the forward attendant station:
-put the handset back in the cradle.
 9. At the aft LH attendant station:
-put the handset back in the cradle.
 10. On the audio control panel in the cockpit:
-release the INT/RAD switch.
 -
push to release the CAB rotary knob.

-
push to release the CAB pushbutton switch.

-
the integral light of the CAB pushbutton switch comes on.

-
the integral light of the CAB rotary knob comes on.

Through the aft LH attendant stationhandset and the cockpit boomset:
-you hear the announcement.
On the forward LH AIP:
-
the message 'CNCL' goes off.

On the aft LH AIP: