SECTION
7
PIPER
AIRCRAFT
CORPORATION
DESCRIPTION
&
OPERATION
PA-28-161.
WARRIOR
II
NARCO
EL T to
OPERATION
On
the ELT unit itself
is
a three position switch placarded ON,
OFF
and
ARM.
The
ARM
position sets the EL T
so
that
it will transmit after impact
and
will continue to transmit until its battery
is
drained. The
ARM
position
is selected when the EL
Tis
installed in the airplane, and it should remain in
that
position.
To
use the EL
Tas
a portable unit in an emergency, remove the cover and
unlatch
the unit from its mounting base. The antenna cable
is
disconnected
by
a left quarter-turn
of
the knurled nut and a pull. A sharp tug on the two
small
wires will break them loose. Deploy the self-contained antenna
by
pulling
the plastic tab marked
PULL
FULLY
TO
EXTEND
ANTENNA.
Move
the switch to ON to activate the transmitter.
In
the event the transmitter
is
activated
by
an impact, it can only
be
turned
off by moving the switch on the E L T unit
to
OFF:
Nor mal operation
can
then be restored by pressing the small clear plastic reset
button
located
on
the
top
of
the front face
of
the EL T and then moving the switch to ARM.
A pilot's remote switch located on the left side panel
is
provided to allow
the
transmitter to
be
turned on from inside the cabin. The pilot's remote
switch
is
placarded ON
and
ARMED.
The switch is normally in the
ARMED
position. Moving the switch to ON will activate the transmitter.
Moving
the switch back to the
ARM
ED position will
turn
off the transmitter
only
if
the impact switch has
not
been activated.
The
EL
T should be checked to make certain the unit has not been
activated during the ground check. Check
by
selecting 121.50
MHz
on
an
operating
receiver.
If
there
is
an oscillating chirping sound, the EL T may
have
been activated and should be turned off immediately. This requires
removal
of
the access cover
and
moving the
~witch
to
OFF,
then press the
reset
button
and
return the switch to ARM. Recheck with the receiver to
ascertain
that
the transmitter
is
silent.
REPORT:
VB-1180
7-24
ISSUED:
AUGUST
13. 1982
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