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System Operation 20/42
The communication link is now established, you can speak using a push to talk pushbutton.
When the conversation is finished, the call is reset by pushing the reset key on the cabin
handset, or by replacing the handset.
Let’s now have a look at the emergency call.
CABIN SYSTEMS MENU
System Operation 21/42
Please, perform an emergency call from
the cabin to the cockpit.
CABIN SYSTEMS MENU System Operation 22/42
No, select the EMER CALL key on the
cabin handset.
CABIN SYSTEMS MENU System Operation 23/42
No, select the EMER CALL key on the
cabin handset.
CABIN SYSTEMS MENU
System Operation 24/42
In the cockpit, the amber CALL and the white ON lights on the call panel and the ATT
light on the audio control panels flash, together with three long buzzers.
You must answer the call by pushing the transmission and reception key on the audio
control panel.
Plleeaassee ddoo iitt..
CABIN SYSTEMS MENU System Operation 25/42
No, select the CAB transmission and
reception pushbuttons.
CABIN SYSTEMS MENU System Operation 26/42
No, select the CAB transmission and
reception pushbuttons.
CABIN SYSTEMS MENU
System Operation 27/42
The communication link is now established, you can speak using a push to talk pushbutton,
this will automatically extinguish the flashing light on the call panel and the audio control panels.
When the conversation is over, the call will be reset by pushing the reset key on the cabin
handset, or by replacing the handset.
We will now continue with the oxygen system and the protective breathing equipment
operation.
CABIN SYSTEMS MENU
System Operation 28/42
Should the cabin pressure altitude exceed 14000 feet, the barometric switch activates the automatic
release mechanism of the cabin oxygen units. The masks drop down. On the cockpit oxygen panel, the
SYS ON light illuminates .
When any mask is pulled, the lanyard attached to the mask extracts the pull pin from the generator and
the oxygen flow starts. Once activated, the oxygen flow cannot be stopped and will continue for at least 15
minutes.
OOXXYYGGEENN
CABIN SYSTEMS MENU
System Operation 29/42
The oxygen unit doors can be opened manually from the cockpit by pressing the MASK MAN ON switch
on the oxygen panel.
In the cabin, the unit doors can be opened by using the manual release tool, after the rapid decent
when the aircraft has reached the safety level.
CABIN SYSTEMS MENU
System Operation 30/42
Plleeaassee waattcchh tthhee vviiddeeoo ooff tthhee Poorrttaabbllee Brreeaatthhiinngg Eqquuiippmeenntt uuttiilliizzaattiioonn..
The Portable Breathing Equipment is primarily used for fire fighting or
when it is essential to work in a smoke contaminated area of the cabin.
Once activated, it will last for at least 20 minutes and cannot be turned off.
PPOORRTTAABBLLEEBBRREEAATTHHIINNGGEEQQUUIIPPMMEENNTTUUTTIILLIIZZAATTIIOONN
CABIN SYSTEMS MENU
System Operation 31/42
EEVVAACCCCOOMMAANNDDSSYYSSTTEEM
To activate the evacuation command system from the cockpit you have to push the
COMMAND pushbutton switch on the EVAC panel.
Sttaarrtt tthhee eevvaaccuuaattiioonn ccoommaanndd ssyysstteem..
CABIN SYSTEMS MENU System Operation 32/42
Noo,, sseelleecctt tthhee EVAC COMMAND ppuusshhbbuuttttoonn..
CABIN SYSTEMS MENU System Operation 33/42
Noo,, sseelleecctt tthhee EVAC COMMAND ppuusshhbbuuttttoonn..
CABIN SYSTEMS MENU
System Operation 34/42
In the cockpit, the ON indicator comes on, the EVAC indicator flashes,
and the specific horn is triggered.
In the cabin, the evacuation indicators flash on the forward and aft
attendant panels, and the specific horns sound.
CABIN SYSTEMS MENU
System Operation 35/42
The horn shut off pushbutton in the cockpit and the reset pushbuttons
on the forward and aft attendant panels shut off the horn in the
corresponding area.
This has been done for you.
Swiittcchh tthhee EVAC ccoommaanndd ssyysstteemooffff..
CABIN SYSTEMS MENU System Operation 36/42
No, select the EVAC COMMAND
pushbutton on the EVAC panel.
CABIN SYSTEMS MENU System Operation 37/42
No, select the EVAC COMMAND
pushbutton on the EVAC panel.
CABIN SYSTEMS MENU
System Operation 38/42
The EVAC command system is now
switched off.
CABIN SYSTEMS MENU
System Operation 39/42
Let’s suppose that the purser has selected the evacuation COMD pushbutton on the forward attendant
panel.
With the selector switch in the CAPT position, the evacuation alert system is only activated in the
cockpit.
- the EVAC horn sounds for 3 seconds,
　
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