On the FWD Attendant Indication Panel (AIP) 320RH:
-the number symbol comes on.
2. On the handset:
-push the PA ALL pushbutton - the number symbol goes off.
switch.
-
the PA ALL message comes on. On the AFT AIPs 320RH:
-
the PA ALL IN USE message comes on. In the handset:
-
the tone stops.
In the cabin, all lavatories and both AFT attendant stations:
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ACTION RESULT -------------------------------------------------------------------------------
-
push the PTT pushbutton switch. - a LO HI LO chime is heard through the loudspeakers.
-
push and hold the PTT and the - a tone is heard through the
PA ALL pushbutton switch. loudspeakers.
NOTE : Before you start the next test step make sure that all emergency
____
oxygen-container door-stops are in the test position.
3.
In the cockpit, on C/B panel 49VU:
- open the C/Bs 2WR, 3WR, 4WR, 5WR and 6WR.
4.
In the cockpit, on overhead panel 21VU:
-lift the switch guard, push and release the MASK MAN ON pushbutton switch.
5.
In the cockpit, on maintenance panel 50VU:
-push and release the OXYGEN TMR RESET pushbutton switch.
6.
On the C/B panel 49VU:
- open the C/B 2KS2.
-close the C/B 2KS2.
In the cabin:
-
the doors of the emergency oxygencontainers (circuit breaker 7WRrelated) open to the test position.
In the cabin, all lavatories and both AFT attendant stations:
-
the volume of the tone through the loudspeakers increases.
-
the volume of the tone through theloudspeakers decreases to the normal level.
-
the volume of the tone through the loudspeakers increases.
-
the volume of the tone through the loudspeakers decreases to the normal level.
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ACTION RESULT -------------------------------------------------------------------------------
7. On the handset: In the cabin, all lavatories and both
AFT attendant stations:
- release the PTT and the PA ALL - the tone stops.
pushbutton switch.
8. At the FWD attendant station:
- put the handset back to the All indications and annunciations are
cradle. cancelled.
9. In the cockpit, on C/B panel
49VU:
- close the C/Bs 2WR, 3WR, 4WR,
5WR and 6WR.
**ON A/C 151-199,
Subtask 23-73-00-710-177-A
D. Do the test of the automatic high-volume announcement. NOTE : On all the emergency oxygen-containers set the door stops to the
____
test position.
NOTE : Do not hold the MASK MAN ON pushbutton switch for more than 30
____ sec., because the FAULT indication light in the TMR RESET pushbutton switch comes on after 30 sec.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. At the FWD attendant station: At the FWD attendant station:
- lift the handset from the - a tone is heard in the handset.
cradle.
On the FWD Attendant Indication Panel
(AIP) 320RH:
- the number symbol comes on.
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ACTION RESULT -------------------------------------------------------------------------------
2. On the handset:
-push the PA pushbutton switch. - the number symbol goes off.
-
the PA ALL message comes on. On the AFT AIPs 320RH:
-
the PA ALL IN USE message comes on. In the handset:
-
the tone stops.
In the cabin, all lavatories and both AFT attendant stations:
-push and hold the PTT and the - a tone is heard through the
PA pushbutton switch. loudspeakers.
NOTE : Before you start the next test step make sure that all emergency
____
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