-
the message 'OVER CAPTAIN' goes off.

On the audio control panel in thecockpit:

-
the integral light of the CAB rotaryknob goes off.

-
the integral light of the CABpushbutton switch goes off.

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 Subtask 23-73-00-710-163-A
 P. Do the test of the priority function of the ATTND 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 handset:
 -push the FWD ATTND pushbutton switch.
 3. At the FWD attendant station:
-lift the handset from the cradle.
On the AFT LH AIP 320RH:
-
the number symbol comes on.

-
the FWD L message comes on.

 On the FWD AIP 320RH:

 -
the green light comes on.

 -
the CALL AFT L message comes on. On the FWD LH ACP 340RH:

 -
the pink lights come on. At the FWD attendant station:

 -a single HI-LO chime sounds.On the FWD LH ACP 340RH:
-
the pink lights go off.

 On the FWD AIP 320RH:

 -
the green light goes off.

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 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
- the CALL AFT L message changes to AFT L.
 On the AFT LH AIP 320RH:
 - the number symbol goes off.
 At the FWD and AFT LH attendant station:
 - speak into the handset and listen for the reply.  - the message and the reply are correctand clear.
 4. On the overhead panel 21VU:  On the AFT LH AIP 320RH:
 - push the CALLS AFT pushbutton switch. - the OVER CAPTAIN message comes on.
 On the AFT RH AIP 320RH:
 - the CALL CAPTAIN message comes on.
 On the FWD AIP 320RH:
 - the AFT L message changes to CNCL AFT L.
 At the AFT attendant stations:
 - a single HI-LO chime sounds.
 5. At the FWD and AFT LH attendant station:  At the FWD and AFT LH attendantstations:
 - speak into the handset and listen for the reply. - the conversation stops.
 6. On the Capt audio selector panel:  On the Capt audio selector panel:
 - 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. 

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 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
-turn the CAB rotary knob fully cw.
 -push and hold the INT/RAD switch to the RAD position.
 7. In the cockpit:
-speak into the boomset microphone and listen for the reply.
 8. At the FWD attendant station:
-put the handset back to the cradle.
 9. At the AFT LH attendant station:
-put the handset back to the cradle.
 10. On the Capt audio selector panel:
 -release the INT/RAD
 pushbutton.

 -
push to release the CAB rotary knob.

-
push to release the CAB pushbutton switch.

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