Cessna 182 1978 - Checkout Interval; Description; Emergency Locator Transmitter (Beginning with 18265361); Operation

MODEL
182
&
T182
SERIES
SERVICE
MANUAL
16-110.
EMERGENCY
LOCATOR
TRANSMITTER.
CAUTION
16-111.
DESCRIPTION.
The ELT
is
a self-contained.
Tests
with
the
antenna
connected
should
be
solid
state
unit.
having
its own
power
supply
with
an
approved
and
confirmed
by the
nearest
con-
externally
mounted
antenna.
The
unit
is mounted
in
trol
tower.
The
FAA/DOT
allows
free
space
the tailcone.
aft
of the
baggage
curtain
on
the
right
transmission
tests
from
the
aircraft
any time
hand
side.
The
transmitters
are
designed
to
provide
within
five
minutes
after
each
hour.
The test
a broadcast
tone
that
is
audio
modulated
in
a swept
time
allowed
is
generally
three
sweeps
of
the
manner
over
the range
of 1600
to
300
Hz in
a distinct.
warble
tone,
or
approximately
one
second.
easily
recognizable
distress
signal
for
reception
by
The control
tower
should
be notified
that a
search
and
rescue
personnel
and
others
monitoring
test
is
about
to be
performed.
the
emergency
frequencies.
The
ELT
exhibits
line
of
sight
transmission
characteristics
which
correspond
NOTE
approximately
to
100
miles
at
a search
altitude
of
10.000
feet.
The
C589511-0117
transmitter,
and
the
Without
its
antenna
connected,
the
ELT
will
C589511-0113
transmitter
on
aircraft
with
Canadian
produce
sufficient
signal
to reach
your
re-
registry,
are used
thru
18268309.
Beginning
with
ceiver,
yet
it will
not
disturb
other
com-
18268294
the C589512-0103
transmitter
is
used
on all
munications
or
damage
output
circuitry.
aircraft.
NOTE
The
C589511-0113
transmits
on
121.
5 MHz
at
25 mw
rated
output
for 100
continuous
hours
in the
tempera-
After
accumulated
test
or
operation
time
ture
range
of -4°
to
+ 131°F
(-20-C
to
+
55-C).
The
equals
1
hour,
battery-pack
replacement
C589511-0117
and
C589512-0103
transmits
on
121.
5
is
required.
and
343.
0 MHz
at 75
mw
rated
power
output
for
48
continuous
hours
in the
temperature
range
of -4°F
to
f.
Check
calendar
date
for
replacement
of
battery-
+ 131°F
(-20°C
to
+55°C).
pack.
This
date
is
supplied
on a
sticker
attached
to
the outside
of
the ELT
case
and to
each
battery.
Power
is supplied
to the
transmitter
by
a
battery-pack.
The
C589511-0114
alkaline
battery-packs
have
the
16-114.
REMOVAL
AND
INSTALLATION
OF
TRANS-
service
life
of the
battery-pack
stamped
on
the
battery-
MITTER
(See
figure
16-18.)
pack.
on
the end
of
the transmitter
below
the switch
a. Remove
baggage
curtain
to gain
access
to
the
and
on top
of the
transmitter.
The
C589512-0107
transmitter
and
antenna.
alkaline
bttery-packs
have
the replacement
date
and
b.
Disconnect
co-axial
cable
from
end
of transmit-
date
of
installation
on
the
battery-pack
and
the
replace-
ter.
ment
date
on the
top of
the transmitter.
c.
Remove
the
two
#10 screws
from
the baseplate
of the
ELT
and
remove
ELT.
16-112.
OPERATION.
A three
position
switch
on
the
d. To
reinstall
transmitter,
reverse
preceding
forward
end of
the unit
controls
operation.
Placing
steps.
the
switch
in the
ON
position
will
energize
the
unit
to
start
transmitting
emergency
signals.
In the OFF
position.
the
unit
is
inoperative.
Placing
the
switch
in
the ARM
position
will
set
the
unit
to start
trans-
Ensure
that
the direction
of flight
arrows
mitting
emergency
signals
only
after
the
unit
has
re-
(placarded
on
the
transmitter)
are pointing
ceived
a
5g
(tolerances
are
+2g
and
-0g)
impact
force,
towards
the
nose
of
the aircraft.
for a
duration
of
11-16
milliseconds.
16-113.
CHECKOUT
INTERVAL:
- ----
- -
100 HOURS
OR THREE MONTHS,
WHICHEVER
COMES
Do
not
leave
the
emergency
locator
transmit-
FIRST.
ter
in the
ON position
longer
than
1 second
a.
Turn aircraft
master
switch
ON.
(3 sweeps
of the
warble
tone)
or
you
may
b.
Turn
aircraft
transceiver
ON
and
set frequency
activate
downed
aircraft
procedures
by
C. A.
P.
,
on
receiver
to
121.
5 MHz.
D. O.
T. or
F. A.
A.
personnel.
c.
Remove
the
ELT's
antenna
cable
from
the ELT
unit.
d. Place
the ELT's
function
selector switch
in the
ON
position
for
1 second
(3 sweeps
of the
warble
tone).
Immediatly
replace
the
ELT
function
sel-
ector
switch
in the ARM
position
after
test
ing ELT.
e.
Test
should
be
conducted
only
within
the
time
period
made
up of the
first
five minutes
after any
hour.
16-64