CESSNA
MODEL 172R (180 HP)
SECTION 7
AIRPLANE & SYSTEMS DESCRIPTION
STANDARD AVIONICS
Standard avionics for the Model 172R (180 HP) airplanes include
the following equipment:
Nav/Com Radio with Kl 208 or Kl 209A
lndicato
l
Head
Transponder
Audio Panel
Emergency Locator Transmitter (EL T)
For complete operating instructions on the standard and optional
avionics systems, refer to the Supplements, Section 9.
I
AVIONICS SUPPORT EQUIPMENT
Avionics operations are supported by the avionics cooling fan,
microphone and headset installations and static discharge wicks.
AVIONICS COOLING FAN
An avionics cooling fan is installed on the left side of the interior
firewall. The system utilizes a single electric fan and associatedl
ductwork to force-cool the center stack radios.
Power to the electric fan is supplied through the AVN FAN circuit
breaker. The fan operates whenever the Master and
Avionicsl
Master switches are ON.
MICROPHONE AND HEADSET INSTALLATIONS
Standard equipment for the airplane includes a hand-held
microphone, an overhead speaker, two remote-keyed microphone
switches on the control wheels, and provisions for
booml
mies/headsets at each pilot and passenger station.
The hand-held microphone contains an integral push-to-talk
switch. This microphone is plugged into the center pedestal and is
accessible to both the pilot and front passenger. Depressing the
push-to-talk switch allows audio transmission on the Com radios.
Oct 4/01
7-47
Summary of Contents for 172R180HP
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