Cessna 172R, Operating Handbook

Page: 373 / 500

CESSNA
MODEL 172R
SECTION
9 -
SUPPLEMENTS
SUPPLEMENT
4 -
FAA APPROVED
SUPPLEMENT
POINTER MODEL 3000-11 OR MODEL 4000-11
EMERGENCY LOCATOR TRANSMITTER (ELT)
This supplement provides information which
must
be
observed-
when operating the Pointer Model 3000-11 or Model 4000-11
1
Emergency Locator Transmitter.
Both the
Pointer
Model
3000-11
ELT (which incorporates
thel
english placard) and Model
4000-11
ELT (which incorporates
thel
bilingual
placard) consist of
a
self-contained, dual-frequency,
solid-|
(
state transmitter powered by
a battery pack consisting
of five
alkaline "C" cell batteries and is automatically
activated by a
deceleration sensing inertia
”G"
switch, which is designed
to
activate when
the
unit senses longitudinal inertia forces as required
in TSO-C91A. Also, a
remote
switch/annunciator is installed on
the
'v
top right
hand side of the copilot’s instrument panel
for
control
of
the ELT
from the flight crew
station. The annunciator, which is in-
the
center
of the rocker switch, illuminates when the ELT
transmitter!
is transmitting. The ELT emits an omni-directional signal on the
international
distress frequencies of 121.5
MHz and 243.0
MHz.
r
General aviation
and commercial aircraft, the
FAA
and
CAP
monitor
121.5 MHz, and 243.0
MHz is monitored by the military.
The
ELT is
contained in a high
impact, fire retardant, glass filled
Lexon case with carrying handle and is
mounted
behind the aft
cabin partition wall on the right side of the tailcone. To gain access
to the unit, unfasten the
turn
fasteners
on the aft cabin
partition.
The ELT is operated by a control panel at the forward facing end of
the unit or by the remote
switch/annunciator located on the
top
right
hand portion
of the copilot’s
instrument
panel (see
Figure
1).
Power for the transmitter is provided by an alkaline battery pack
inside the
transmitter case.
SECTION 1
GENERAL
Feb
28/00
S4-3