RAZAIR
‐
A1
‐
METRO
‐
III
‐
AFM
‐
001
1
‐
36
FUEL
CONSUMED
TOTALIZER
The
fuel
‐
consumed
totalizer
indicates
the
total
amount
of
fuel
consumed
by
both
engines
since
the
counter
was
last
zeroed.
Zeroing
is
accomplished
by
clicking
on
the
mechanical
reset
lever
on
the
totalizer.
FIRE
PROTECTION
SYSTEM
The
fire
protection
system
consists
of
engine
overheat
detection
systems
and
engine
fire
‐
extinguishing
systems.
There
are
cockpit
warning
lights
located
on
the
annunciator
panel
and
on
the
fire
extinguisher
control
assembly
(Fig
63).
Heat
sensors
and
a
fire
extinguisher,
which
is
discharged
from
the
cockpit,
are
located
within
each
engine
nacelle.
Fig.
63
Fire
Extinguisher
Control
Panel
ENGINE
FIRE
DETECTION
Each
engine
has
a
simulated
fire
detector,
when
a
fire
condition
in
an
engine
is
detected
the
red
FIRE
warning
light
illuminates
in
both
the
annunciator
panel
and
in
the
fire
extinguisher
control
panel.
The
FIRE
light
turns
off
when
the
fire
condition
disappears.
The
PRESS
TO
TEST
switch
on
the
annunciator
panel
checks
that
the
FIRE
lights
work
as
intended.
ENGINE
FIRE
EXTINGUISHING
Each
engine
nacelle
contains
a
fire
extinguisher
bottle;
their
activation
is
controlled
from
the
cockpit
by
using
the
fire
extinguisher
control
assembly
by
means
of
a
covered
three
indicator
switchlight.
To
activate
the
fire
extinguisher
bottle
you
have
to
click
on
the
clear
cover,
lifting
it.
Then
click
on
the
illuminated
switch
light.
The
selected
bottle
will
discharge
and
putting
out
the
engine
fire.
The
amber
E
light
will
illuminate
indicating
that
the
bottle
is
empty
and
cannot
be
used
again.
The
switchlights
can
be
tested
by
left
or
right
clicking
on
the
FIRE
EXT
TEST
switch
that
is
between
the
two
switchlights.
If
the
system
has
no
problem
all
three
of
the
lights
will
illuminate
for
as
long
as
the
switch
is
in
the
test
position.
The
FIRE
EXT
TEST
switch
will
return
to
the
OFF
position
after
5
seconds.
NOTE
The
fuel
consumed
totalizer
is
automatically
zeroed
when
an
engine
is
started.
Fig.
62
Fuel
Consumed
Totalizer
