VIETNAM AIRLINES CORPORATION
A76 AMC
TECHNICAL TRAINING CENTER
------------------------------------
ATA 25
Emergency equipments & Entertainment system
(For Training Purposes Only)
NOI BAI 4/2007
Edited by DUONG VAN GIANG
EMERGENCY EQUIPMENTS
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MISCELLANEOUS EMERGENCY EQUIPMENT PRESENTATION
GENERAL
OXYGEN KIT
The emergency equipment is kept in different locations
in the cockpit and the cabin.
Emergency equipment is composed of :
- Fire extinguisher,
- Oxygen kit,
- Smoke hood,
- Crash axe,
- First aid kit,
- Megaphone,
- Emergency radio beacon,
- Flash light,
- Life vest,
- Manual release tool.
NOTE: The exact quantity and location of these items
depend on individual airline configuration and
cabin layout.
The portable oxygen equipment is installed in the
passenger cabin to supply oxygen to the passengers in
an emergency.
FIRE EXTINGUISHER
The portable fire extinguishers are used to extinguish
any fire in the cockpit and cabin.
They are fitted under the attendant seats in the
passenger compartment and in the cockpit next to the
third occupant seat
SMOKE HOOD
The flight crew emergency breathing hood system
provides protection to the eyes and respiratory system
for crew members.
Smoke masks are also supplied for the cabin attendants
to fight a fire or, against the emission of smoke and
noxious gases.
CRASH AXE
The crash axe is used to cut through light structures,
panels and windows to get access or exit in an
emergency.
The insulated handle is resistant to high voltages.
FIRST AID KIT
First aid kits are kept near forward and aft attendant
stations, in overhead stowage compartments.
MEGAPHONE
A megaphone is stowed in the left forward and aft
attendant stations.
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MISCELLANEOUS EMERGENCY EQUIPMENT PRESENTATION
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MISCELLANEOUS EMERGENCY EQUIPMENT PRESENTATION
EMERGENCY RADIO BEACON
An emergency radio beacon is stowed in the left aft
attendant station.
FLASH LIGHT
Hand held flash lights are installed as movable light
sources.
They are used if bad light conditions occur during an
on-board emergency.
LIFE VEST
One passenger life vest is stowed under each passenger
seat.
Life vest components include :
- a CO2 gas inflation system,
- an oral inflation tube,
- a lamp for survivor location in poor visibility
or night conditions,
- a water activited cell (battery) to supply the
lamp,
- a whistle to attract attention
MANUAL RELEASE TOOL
Manual release tools, used to open the passenger oxygen
mask doors, are available at each cabin attendant
station.
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For Training Purposes Only
EMERGENCY LOCATOR TRANSMITTER (ELT)
Emergency locator transmitters, or ELTs in short, help search--and--rescue
crews to find aircraft that accidentally land away from an airport or ditch into
water.
Two different types of ELT are used in aircraft. The first type is a fixed transmitter which is installed in the upper aft section of the aircraft fuselage. The second type is a portable buoyant type, which you can find near the life rafts in
the cabin ceiling.
All ELTs transmit two radio signals on international emergency frequencies.
One signal at the VHF frequency of 121,5 MHz, and the other at the UHF frequency of 243MHz. Both radio signals are modulated with a swept--tone signal.
UHF and VHF frequencies can only be received up to a distance of about
200 nautical miles, so a rescue crew can only find the aircraft if it is located inside this range.
Therefore the fixed ELT transmits an additional signal at 406 MHz via a small
antenna near the vertical stabilizer. This signal can be received by satellites
and allows world--wide loaction of aircraft. The signal contains information about the aircraft type and tail--sign and if available also the last known present
position.
The ELTs are powered by an internal battery for at least 48 hours.
The portable ELT becomes active when the battery comes in contact with water or when a small pin is removed from the battery.
The fixed ELT is automatically activated when an internal g--switch detects an
acceleration of more than 5 G in the longitudinal axis. The fixed ELT can also
be activated manually from a control panel on the cockpit overhead panel.
Note that for a test you must only switch on the ELT during the first five minutes of an hour for a maximum of fifteen seconds. All other transmissions will
start search and rescue operations immediately.
During the test you can hear the swept--tone signal when you tune the VHF
communication system to 121,5 MHz.
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For Training Purposes Only
Figure 32
Emergency Locator Transmitter
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ESCAPE FACILITY PRESENTATION
GENERAL
EMERGENCY EXIT SLIDE
Escape facilities are provided for passenger and crew
evacuation.
They are located in the cockpit and in the cabin.
The two emergency exits of each side are equipped with
a dual lane offwing escape slide.
The four emergency exits provide quick evacuation for
the passengers. The dual lane escape slide operates
automatically if one door of each side is opened in
ARMED mode.
COCKPIT
In case of emergency evacuation, there are two
possibilities for the flight crew to evacuate the
cockpit.
The simplest emergency evacuation procedure for the
flight crew is to go through the cockpit door and use
the passenger door slide.
If necessary a secondary means enables the flight crew
to evacuate the cockpit by opening the sliding windows
and using the escape ropes stowed in the ceiling.
PASSENGER DOOR SLIDE
Single lane escape slides are installed on each
passenger door.
They provide quick evacuation for the passengers and
the crew in an emergency evacuation and operate
automatically if the door is opened in ARMED mode.
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ESCAPE FACILITY PRESENTATION
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ESCAPE FACILITY PRESENTATION
SLIDE INSTALLATION
Escape slides are installed at all the aircraft exits.
The passenger door escape slide and its inflation
reservoir are located in a container at the bottom of
the door.
The emergency exit escape slide is located in a
container above the wing in each wing-to-fuselage
fairing, and the inflation reservoirs are installed
in the AFT cargo compartment, behind the sidewall
panels.
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ESCAPE FACILITY PRESENTATION
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ESCAPE FACILITY PRESENTATION
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PASSENGER DOOR ESCAPE SLIDE RAFT DESCRIPTION / DEPLOYMENT
NOTE : In this module the PASSENGER DOOR SLIDE
DESCRIPTION / DEPLOYMENT is described on the
A320 but the principle is the same for the A319
and the A321.
DESCRIPTION
The forward and rear cabin doors of the A320 are
equipped with slide rafts.
The inflation and deployment sequence is automatically
initiated when the door is opened in armed
configuration.
The slide raft is ejected out of its container, and
remains folded by restraint devices which break at
determined pressure points to allow correct
deployment.
The slide raft is stowed in a container connected to
the cabin door.
NORMAL OPERATION
As soon as the door handle is lifted, the door is
pneumatically pushed open and the slide raft, fixed
with a girt bar to the cabin floor, is pulled out of
the container, drops down and inflates automatically.
As the inflatable falls down, the inflation system is
activated.
The gas stored in the inflation cylinder is discharged
through flexible hoses to the aspirators.
The aspirator flaps open and ambient air is drawn in
under partial vaccum, created by the high velocity in
the venturi.
Then the flaps close and the remaining gas, tops up
the inflatable to its operational pressure.
Should the automatic inflation system fail, the slide
raft must be inflated manually.
MANUAL OPERATION
For that, the red manual inflation handle located on
the right hand side of the girt extension must be
pulled.
A lighting system is fitted on both sides and on the
runway end of the inflatable. The power supply for
this lighting system is provided by the cabin emergency
power supply units.
Two assist handles are located on both sides at the
lower end of the inflatable, to allow assisting people
to hold on.
In case of a ditching, prior to door opening the
survival kit must be connected to the slide raft. The
survival kit is stored in the nearest overhead bin.
Place the survival kit on the floor, forward of the
door, detach the lanyard from the girt bar.
Pull the lanyard and the hook, to snap on front of the
survival kit.
Then open the door.
The slide raft drops out of the container and deploys.
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PASSENGER DOOR ESCAPE SLIDE RAFT DESCRIPTION / DEPLOYMENT
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OFFWING ESCAPE SLIDE DEPLOYMENT
NOTE : In this module the OFFWING ESCAPE SLIDE
DEPLOYMENT is described on the A320 but the
principle is the same for the A319.
The offwing escape slide is packed in a container
assembly, which in turn is mounted into the centre
fuselage belly fairing.
Two type "3" exits are located over each wing and are
always in armed configuration.
Two emergency lights underneath the wing exits light
the escape way leading to the escape slide which is
pointed out with red fluorescent arrows.
The opening of one wing exit will initiate the
deployment sequence.
The escape slide is ejected out of its, container and
deploys in approximately four seconds.
The inflation system consists of an inflation cylinder,
which is located in the aft cargo compartment.
Activation of the release mechanism initiates the
inflation sequence.
The gas stored in the cylinder is discharged to the
inflatable slide through flexible hoses and an
aspirator.
The aspirator flaps open and ambient air is drawn into
the slide.
The slide remains folded by restraint devices, which
break at a predetermined force, to permit correct
deployment.
Two black arrows located on the ramp section indicate
the direction of the escape route.
A lighting system is provided on the slide.
The lights are located on the ramps along the side
tubes and across the runway end.
A red manual inflation handle, located in each exit
frame, must be pulled to manually activate the
inflation and deployment sequence, in case of automatic
release failure.
If the slide is deployed but not inflated, it still
can be used as a hand-held escape chute.
On the ramp section top, a hook is located and this
hook must be connected to an attachment fitting on the
wing.
Two red NO FAIL HANDLES are located on both sides of
the escape slide on the runway end.
Four able bodied men must hold the deflated slide
extended, by means of the no fail handles, to allow
the passengers on the wing to descend.
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OFFWING ESCAPE SLIDE DEPLOYMENT
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Entertainment system
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PASSENGER ENTERTAINMENT SYSTEM PRESENTATION
GENERAL
The passenger address and entertainment
comprises the following basic functions:
system
- Passenger Entertainment System (PES),
- Passenger Entertainment System Video
(PES
video),
- Pre-Recorded Announcements and boarding Music
system (PRAM).
The PES comprises the PES music, the passenger address
and the passenger service.
PES
The PES transmits pre-recorded music programs,
passenger address information, video and video sounds
to the passengers.
The audio signals can be heard through headphones
connected to the Passenger Control Units (PCU).
The PCU allows several music channels and video audio
channels to be selected and the volume to be adjusted.
The PCU also allows the reading lights and passenger
calls to be remotely controlled through the Passenger
Service System (PSS).
All pre-recorded announcements (video and sound) and
the passenger address messages, heard in the headphones
through the PCU, have priority over the music and video
sound entertainment channels.
The anouncements and passenger address messages are
also broadcast through the passenger address
loudspeakers, via the CIDS.
The PES audio reproducers supply music channels to the
Main Multiplexer and boarding music channels to the
CIDS director.
The CIDS broadcasts the boarding music through the
passenger address loudspeakers.
Boarding Music (BGM) channel and volume control is
performed on the Forward Attendant Panel (FAP).
The Main Multiplexer is connected to the CFDIU to
ensure the passenger entertainment BITE function.
PES VIDEO
The PES video shows pre-recorded video movies and video
announcements through different display units in the
passenger compartment.
The video sound is transmitted to the Main Multiplexer
and to the CIDS.
Therefore video sounds can be heard from the headset
through the PCU or from the cabin passenger address
loudspeakers.
The in-seat video display units are supplied through
the Main Multiplexer.
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PASSENGER ENTERTAINMENT SYSTEM PRESENTATION - SCHEMATIC
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PASSENGER ENTERTAINMENT SYSTEM PRESENTATION
PRAM
The PRAM is an audio tape reproducer which contains
pre-recorded announcements and boarding music supplied
to the CIDS director.
The announcements are also sent to the Main
Multiplexer.
The PRAM is controlled from the FAP.
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PASSENGER MUSIC ENTERTAINMENT SYSTEM D/O
MAIN MULTIPLEXER
WDB
The Main Multiplexer (MM) generates a radio frequency
signal which contains the audio information from the
audio reproducer (A/R), and Video System Control Unit
(VSCU), passenger address announcements from the Cabin
Intercommunication Data System (CIDS) and video
signals from the VSCU.
Each WDB supplies a maximum of 2 SEB columns.
If passenger address announcements are to be made, the
CIDS sends a keyline signal to the audio reproducer
to stop it.
A coaxial cable transmits the radio frequency signal
to the Seat Electronic Boxes (SEB), according to the
zone selection through the Wall Disconnect Boxes (WDB).
The SEBs only transmit the selected audio signal to
the headsets through the Passenger Control Unit (PCU).
A zone selection, for Passenger Address (PA) and video
sounds, for a maximum of 2 zones, is made through
keylines.
SEB
The Seat Electronic Box (SEB) changes the combined
radio frequency audio signal back to its original
analog form and only transmits the selected program
to the PCU.
Each SEB supplies a maximum of 3 PCUs.
The SEBs receive PCU selected data and transmit it to
the CIDS director, through the PSS and through the MM.
PCU
The Passenger Control Unit (PCU) allows the passengers
to select, to adjust the volume and to hear music and
video sounds.
Each PCU has a stereophonic transducer to drive a
stereo pneumatical headset, or a jack for an electrical
headset, or both.
Passenger Service System (PSS) digital data is
exchanged between the MM and the PCU.
The MM transmits this data through an ARINC 429 data
bus to the CIDS director.
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PASSENGER MUSIC ENTERTAINMENT SYSTEM D/O
AUDIO REPRODUCER
The Audio Reproducers (A/R) provide different music
programs from cassettes tape or compact disks, to the
MM.
The audio reproducers also send one music program,
among 4 music programs, for boarding music (BGM), to
the CIDS director.
The BGM program selection is done through 3 keylines
from the CIDS director.
Boarding music program selection and volume are
controlled from the Forward Attendant Panel (FAP).
BITE
The BITE is used for detection and isolation of system
and component faults.
All BITE data of the PES music is assembled in the MM.
The MM transmits the BITE data through an ARINC 429
data bus to the CFDIU.
The BITE data transmission to the CFDIU is made
continuously in normal mode and on request in
interactive mode.
In interactive mode, the BITE is connected to the MCDU
through the CFDIU.
The MM starts an automatic self test after power up
and a manual self test after transmission of the
related MCDU command.
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PASSENGER ENTERTAINMENT SYSTEM MUSIC COMPONENTS - MAIN MULTIPLEXER
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PASSENGER ENTERTAINMENT SYSTEM MUSIC COMPONENTS - AUDIO REPRODUCER
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PASSENGER ENTERTAINMENT SYSTEM MUSIC COMPONENTS - SEAT ELECTRONIC BOX
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PES VIDEO D/O
VSCU
The Video System Control Unit (VSCU) controls the
Passenger video Entertainment System (PES video).
The VSCU receives video and audio signals from the
Video Tape Reproducers (VTR).
It generates a radio frequency signal which contains
the video signals and sends it through the tapping
units to the related display units.
The VSCU operates in the following formats:
- PAL,
- SECAM,
- NTSC.
The VSCU sends the video sounds to the Main Multiplexer
(MM) and to the Cabin Intercommunication Data System
(CIDS) director.
The passengers can hear the video sounds through
headsets connected to the Passenger Control Units
(PCUs) or from the Passenger Address (PA) loudspeakers.
The interface between the optional Cabin and Passenger
Management System (CPMS) and the VSCU allows the
following functions:
- remote control of the video system, camera
control unit and Passenger
- Visual Information System (PVIS),
- display of news and advertisements provided by
the CPMS,
- preview of video programs.
The Passenger Video Information System (PVIS) is an
option that receives information which is processed,
formated and transmitted as video signals to the VSCU.
The VSCU transmits this information to the display
units.
As an option, the video camera converts optical images
into video signals compatible with the video system.
This signal is sent to the VSCU and can be displayed
on the video display units.
The camera can be remotely controlled from the CPMS.
Each PA announcement overrides the PES video sounds
in the related zones and stops the video tape
reproducers.
In case of a rapid cabin decompression, the VSCU stops
the video transmission and controls the retraction of
the overhead monitors installed in the overhead stowage
compartment.
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PES VIDEO D/O
VTR
BITE
The Video Tape Reproducers (VTR) supply audio and video
signals to the VSCU.
The VTRs are remotely controlled from the VSCU.
On the front panel of the VTRs, all the operation
controls are installed.
The BITE is assembled into the video system.
All the PES video BITE data is transmitted through an
ARINC 429 data bus to the MM via the CIDS.
The MM sends this data through an ARINC 429 data bus
to the CFDIU.
The following video systems are possible:
The VSCU starts an automatic self test after power up
and a manual self test after transmission of the
Multipurpose Control and Display Unit (MCDU) command.
VHS,
SVHS,
BETA,
VIDEO 8,
High band video 8.
The following signal formats are possible:
- PAL,
- SECAM,
- NTSC.
In CFDIU interactive mode, the BITE is connected to
the Multipurpose Control and Display Unit (MCDU)
through the CFDIU, to show the maintenance data, start
a test or to show the Line Replaceable Unit (LRU)
identification.
The BITE failure transmission to the CFDIU is made
continuously in normal mode, and on request in
interactive mode.
TAPPING UNIT
The tapping units distribute the video signals to the
display units in each cabin zone.
Each tapping unit can supply a maximum of 2 displays.
Each tapping unit has a pincoded address to give a
unique address to the unit.
This enables the VSCU to control each display unit
individually.
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PES VIDEO D/O
VISUAL DISPLAYS
Display units
compartment.
are
installed
in
the
passenger
Each display unit is connected to the nearest tapping
unit.
Each display unit operates with these formats:
- PAL,
- SECAM,
- NTSC.
A retraction mechanism is used to move the overhead
display units, installed in the overhead compartment,
into stowed or viewing position.
Each monitor is automatically energized in the viewing
position, and de-energized in the stowed position.
The monitors move
position when:
automatically
into
the
stowed
- an electrical power loss occurs for more than
200 ms,
mechanical resistance occurs while
display unit moves down,
- a rapid cabin decompression occurs.
- a
the
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PES VIDEO D/O - HATRACK MOUNTED DISPLAY UNIT
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PASSENGER ENTERTAINMENT SYSTEM VIDEO COMPONENTS - VIDEO SYSTEM CONTROL UNIT
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PASSENGER ENTERTAINMENT SYSTEM VIDEO COMPONENTS - WALL MOUNTED DISPLAY UNIT
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PASSENGER ENTERTAINMENT SYSTEM VIDEO COMPONENTS - VIDEO TAPE REPRODUCER
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PASSENGER ENTERTAINMENT SYSTEM VIDEO COMPONENTS - PASSENGER CONTROL UNIT
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PASSENGER VISUAL INFORMATION SYSTEM D/O
PRESENTATION
The Passenger Visual Information System (PVIS),
provides continuously updated flight and destination
information to the passengers through the video display
units.
Information is given to the passengers either in text
form or in multicolored maps.
Several modes can be selected:
- MAP mode : map display,
- INFO mode : flight information pages,
- LOGO mode : logo display,
- AUTO mode : automatic cycling of all
pictures.
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PASSENGER VISUAL INFORMATION SYSTEM D/O - PASSENGER VIDEO INFORMATION SYSTEM SCREENS
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PASSENGER VISUAL INFORMATION SYSTEM COMPONENTS - DIGITAL INTERFACE UNIT
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PASSENGER VISUAL INFORMATION SYSTEM COMPONENTS - REMOTE CONTROL UNIT
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