B2 High-Intermediate Other 531 Folder Collection
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Dear friends and followers,
welcome back to my channel

and lovely greetings
from the Airbus A320 simulator

at the TFC Flight Training Centre
here in Essen, Germany.

This is another Airbus introduction video
and I'll be giving you a basic explanation
of the A320 fire protection system.

So let's get started!
The aircraft fire protection system
consists of a fire and overheat detection

and extinguishing system
for both engines and the APU.

Besides that, there is a smoke detection
and extinguishing system

in the cargo compartments
and the lavatories.

Plus, a smoke detector in the avionic bay
and portable fire extinguishers
for the cockpit and the cabin crew.

So let's take a closer look
at the fire extinguisher

and detection system
in the engines and APU.

Now each engine has
two extinguisher bottles,

which electrically operate squibs
to discharge their contents

and so does the APU,
except that with only one,

has one extinguisher bottle.
And the pilots control
and discharge both systems

with the engine and APU fire panel
on the overhead panel.

So both systems have a fire
and overheat detection system

consisting of two identical
fire detection loops, A and B,

mounted in parallel
and a fire detection unit, a FDU.

The loops consists of three to four
sensing elements for each engine.

One in the pylon nacelle,
one in the engine core,
and one in the fan section.
And one independent sensing unit
in the APU compartment.

So when is the fire warning triggered?
When any sensor on the loop
is subject to heat,

it sends a signal
to the fire detection unit

and then triggers the warning.
[aural fire warning sounds]

Or as soon as loop A and B
detect a temperature at a preset level,
the warning system is triggered.

If both loops should break
within five seconds,

the system expects
that both loops got damaged by flames

and also triggers the warning system.
In case of one faulty loop,
the other operative one takes over
and still protects the aircraft.

Other than that,
if the system detects an APU fire
while the aircraft is on the ground,

it shuts down the APU automatically
and discharges the extinguishing agent.

Okay, let's take close look
at the fire switches

on the upper level
of the overhead panel.

The push button's normal position is IN
and guarded by this red frame.

[aural fire warning sounds]
Once a fire warning is triggered,

the pilot opens the guard
and pushes the button.

And as it pops out,
it sends a electrical signal

that performs the following
for the corresponding engine.

First of all,
it silenced the aural fire warning,

arms the fire extinguisher squibs,
closes the low pressure fuel valve,
closes the hydraulic fire shutoff valve,
closes the engine bleed valve,
closes the pack flow control valve,
cuts off the FADEC power supply
and deactivates the IDG,

the integrated drive unit
driving the generator.

Next to fire push button
are the two agent push buttons.

So both buttons become active
when the flight crew

presses the engine fire push button
for the affected engine

and a squib light comes up in white,
helping the flight computer identify
which agent is now ready to be discharged.

A brief push on the button discharges
the corresponding fire extinguisher

and DISCH lights up amber
when the fire extinguisher bottle

is entirely empty,
measured by its bottled pressure.

And then you have the TEST push button.
This button permits the flight crew
to test the operation
of the fire detection

and extinguishing system
before each flight of the day.

When the flight crew presses it,
a continuous repetitive chime sounds,
the master warning lights starts flashing,
the engine fire warning appears
on the lower ECAM,

and now on the engine panel
of the pedestal,

the fire lights come on red.
To perform this test correctly you check
that all necessary lights come on,

the procedure is shown on the ECAM,
and that you cancel the aural warning

by pressing
the master warning push button.

And the same procedure applies
as you press the APU fire TEST button.

Now in case of an APU fire,
the pilot opens the guard
and presses the APU push button.

And by the way, that's not the only way
you can shut off the APU
in case of a fire on ground.

There's an external APU panel
below the cockpit

near the ground power supply connector.
In case of a fire,
a warning sound can be heard

and the ground personnel can discharge
the extinguisher bottle from below
by pressing this button.

So that was it for today.
I hope you enjoyed
this basic introduction video

on the Airbus fire protection system
and make sure to watch the upcoming videos
on Airbus A320 System Knowledge.

Make sure to perform a "touch and go"
at my Instagram account,

the link is in the description below.
And don't forget
to hit the subscribe button

so you won't miss out
any upcoming videos.

Big thank you for the support by TFC,
providing me
with this great flight simulator.

Make sure to check out their website
for more details about their flight school,
programs and training.

And see you next week.
All the best, your Captain Joe.

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Airbus FIRE PROTECTION system!!! AIRBUS SYTEM KNOWLEDGE explained by Captain Joe

531 Folder Collection
林崇文 published on October 26, 2017
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