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- A320 : two forward, two aft cabin doors, and four
overwing emergency exits (two on each side),
- A319 : two forward, two aft cabin doors, and two
overwing emergency exits (one on each side),
Let’s start with the forward and aft doors.
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CABIN SYSTEMS Cabin Presentation 12/28
All these doors are equipped with a control
handle used for door operation.
Three assist handles to enhance safety during
door operation, two on the door frame and one
on the door itself.
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CABIN SYSTEMS Cabin Presentation 13/28
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CABIN SYSTEMS Cabin Presentation 14/28
An evacuation device is stowed in a
container on the lower part of the door.
A control lever is used to arm or
disarm the device.
A disarmed/ armed control window
indicates the status.
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CABIN SYSTEMS Cabin Presentation 15/28
The door support arm houses the emergency opening cylinder and the
pressure gage.
A gust lock on top of the support arm, must be pressed to unlock the
door from the open position.
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CABIN SYSTEMS Cabin Presentation 16/28
Each door has an observation window equipped with a sun-shield.
Near the window, there are two electrical indicator warnings :
- one indicator which illuminates white when the slide is armed and the door handle moved up,
- one indicator which flashes red in case of cabin pressurization when both engines are off and
the door is disarmed.
The lights are also visible from the outside.
Let’s continue with the overwing exits.
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CABIN SYSTEMS Cabin Presentation 17/28
The A319/A320 overwing emergency exits can be opened from outside and inside.
Inside opening instructions are placarded on the exit frame and on the passenger
seatbacks.
A cover flap protects the control handle.
A slide armed indication illuminates white when the cover flap is removed.
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CABIN SYSTEMS Cabin Presentation 18/28
The two forward and the two aft cabin doors are equipped
with either a single lane escape slide (as shown on the
picture) or a slide raft.
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CABIN SYSTEMS Cabin Presentation 19/28
The inflation and deployment is automatically initiated when the cabin door is
opened in the armed mode. Should the escape slide not inflate automatically, the red
manual inflation handle located on the right hand side of the girt bar must be pulled.
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CABIN SYSTEMS Cabin Presentation 20/28
The slide is equipped with a lighting system supplied from the integral emergency
power supply units. The lights are automatically supplied when the slide is
deployed.
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CABIN SYSTEMS Cabin Presentation 21/28
In case of a pressure loss, the red handles on the lower part of the escape device,
allow the slide to be used as a hand held escape chute.
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CABIN SYSTEMS Cabin Presentation 22/28
The overwing emergency exits control a dual lane escape slide.
The overwing escape slide is automatically deployed when an exit is opened.
Two emergency lights underneath the wing exits illuminate the escape way leading to the escape slide , pointed
out with red fluorescent arrows. Should the automatic sequence fail, a red handle located in each exit frame, when
pulled, activates the manual inflation.
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CABIN SYSTEMS Cabin Presentation 23/28
In case of a cabin depressurization, oxygen masks automatically
drop down. The masks are located over the passenger seats, over
each cabin crew station, and in the lavatories. There are always extra
mask at all seats, each crew station and in the lavatories, although
the specific layout is optional.
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CABIN SYSTEMS Cabin Presentation 24/28
Each oxygen unit is fitted with one generator which is designed to produce oxygen for either
2, 3 or 4 masks.
The masks are provided with a flexible supply hose, a flow indicator and a reservoir bag. They
are attached to the generator by means of a pin which automatically starts the generation of
oxygen when it is pulled away from the cylinder.
A door stop is used for the test procedure and prevents the masks from dropping. The
number of masks contained in the unit is indicated on it.
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CABIN SYSTEMS Cabin Presentation 25/28
Portable oxygen bottles and masks are located in the cabin for first aid purposes.
Protective Breathing Equipment (PBE) is located in the vicinity of cabin crew stations,
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空客a320飞机概述1(39)
