Textron 172R180HP, Pilot Operating Handbook

Page: 309 / 396

CESSNA
MODEL 172A
SECTION 9 - SUPPLEMENTS
SUPPLEMENT 4 - FAA APPROVED
SUPPLEMENT
POINTER MODEL 3000-11 EMERGENCY LOCATOR
TRANSMITTER (EL T)
SECTION 1
GENERAL
This supplement provides information which must be observed
when operating the Pointer Model 3000-11 Emergency Locator
Transmitter.
The Pointer Model 3000-11 EL T consists 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 top right hand side of the copilot's instrument panel
for control of the EL T from the flight crew station. The annunciator,
which is in the the center of the rocker switch, illuminates when the
EL T transmitter is transmitting. The EL T emits an omni-directional
signal on the international distress frequencies of 121.5 MHz and
243.0 MHz. General aviation and commercial aircraft, the FAA and
CAP monitor 121.5 MHz, and 243.0 MHz is monitored by the
military.
The EL T 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 accessl
to the unit, unfasten the turn fasteners on the aft cabin partition.
The EL T 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.
Nov 3/97 S4-3