Airplane Handling, Service And Maintenance - Cessna 150 COMMUTER 1976 Pilot Operating Handbook

SECTION 7
" AIRPLANE & SYSTEMS DESCRIPTIONS
CESSNA
MODEL 150M
The transmitter selector switch is labeled TRANS, and has two posi-
tions. When two transmitters are installed, it is necessary to switch the
microphone to the radio unit the pilot desires to use for transmission.
This is accomplished by placing the transmitter selector switch in the
position corresponding to the radio unit which is to be used. The up posi-
tion selects the upper transmitter and the down position selects the lower
transmitter.
The installation of Cessna radio equipment provides certain audio
back-up capabilities and transmitter selector switch functions that the
pilot should be familiar with. When the transmitter selector switch is
placed in the No. 1 or No. 2 position, the audio amplifier of the corres-
ponding transceiver is utilized to provide the speaker audio for all radios.
If
the audio amplifier in the selected transceiver fails, as evidenced by
loss of speaker audio for all radios, place the transmitter selector switch
in the other transceiver position. Since an audio amplifier is not utilized
for headphones, a malfunctioning amplifier will not affect headphone oper-
ation.
The speaker-phone switches determine whether the output of the re-
ceiver in use is fed to the headphones or through the audio amplifier to
the speaker. Place the switch for the desired receiving system either in
the up position for speaker operation or in the down position for head-
phones. The center OFF position will remove receiver output to either
headphones or the speaker.
STATIC DISCHARGERS
If frequent IFR flights are planned, installation of wick-type static
dischargers is recommended to improve radio communications during
flight through dust or various forms of precipitation (rain, freezing rain,
snow or ice crystals). Under these conditions, the build-up and discharge
of static electricity from the trailing edges of the wings, rudder, elevator,
propeller tips, and radio antennas can result in loss of usable radio sig-
nals on all communications and navigation radio equipment. Usually the
ADF is first to be affected and VHF communication equipment is the last
to be affected.
Installation of static dischargers reduces interference from precipi-
tation static, but it is possible to encounter severe preCipitation static
conditions which might cause the loss of radio signals, even with static
dischargers installed. Whenever possible, avoid known severe precipita-
tion areas to prevent loss of dependable radio signals. If avoidance is
impractical, minimize airspeed and anticipate temporary loss of radio
signals while in these areas.
7-32
CESSNA
MODE L 150M
SECTION 8
HA J\TD LING , SERVICE
& MAINTENANCE
SECTION 8
AIRPLANE HANDLING,
SERVICE
&
MAINTENANCE
TA BLE OF CONTENTS
Introduction . . . . . .
Identification Plate . . .
Own er Follow-Up System
Publications . . . .
A irplane File . . . . .
Airplane Inspection Periods
FAA Required Inspections.
Cessna Progressive Care .
Cessna Customer Care Program .
Pilot Conducted Preventive Maintenance
Alterations or Repairs
Ground Handling
Towing .
Parking.
Tie-Down
Jacking .
Leveling.
Flyable Storage
Servicing . . .
Engine Oil . .
Fuel . . . .
Landing Gear
Cleaning and Care
Windshield-Windows
Painted Surfaces
Propeller Care.
Engine Care .
Interior Care
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