Cessna 1971 Super Skymaster - Page 29

Total loss of electrical power:
Turn off all electrical equipment (DO NOT TURN OFF MASTER
SWITCH).
(2) Press "ALT RESTART" switch and release button. and allow a
few seconds for alternators to build up.
(3) Turn electrical equipment on again.
FIRES.
ENGINE FIRE IN FLIGHT.
Although engine fires are extremely rare in
the following steps
should be taken if one is encountered.
(1) Propeller Control Lever -- Feather (affected engine).
(2) Mixture Control Lever -- Idle cut-off ("ICO") (affected engine).
(3) Fuel Selector Valve Handle -- "OFF" (affected engine).
(4) Power - - As required (operating engine).
(5) Ignition/Starter Switch -- "OFF" (inoperative engine).
(6) Cowl Flap Switches -- AJ:3 required.
(7) Electrical Load -- Reduce.
(8) Alternator Switch -- Off (inoperative engine).
(9) Land as soon as practical.
NOTE
Refer to engine-out operation and single-engine landing
in this section for additional information.
ELECTRICAL FIRE IN FLIGHT.
The initial indication of an electrical fire is the odor of burning insul-
ation. The immediate response should be to turn off the master switch.
Then close off ventilating air as much as practicable to reduce the chances
of a sustained fire. If an oxygen system is available in the aircraft and
If electrical power is indispensable for the flight, an attempt may be
made to identify and cut off the defective circuit as follows:
(1) Master Switch -- Off.
(2) All other switches (except ignition/starter switch) -- Off.
(3) Check condition of circuit breakers to identify faulty circuit
if possible. Leave faulty circuit deactivated.
(4) Master Switch -- "ON."
(5) Select switches "ON" successively, permitting a short time de-
lay to elapse after each switch is turned on until the short circuit is
localized.
(6) Make sure fire is completely extinguished before opening vents.
FLIGHT IN ICING CONDITIONS.
,I
Flight in known or forecast icing conditions should be avoided when-
ever possible. If icing conditions cannot be avoided, and the aircraft is
1'\11
not equipped with de-icing proviSions, the following procedures are
recommended.
(1) Turn pitot heat switch "ON" (if installed).
(2) Turn back or change altitude to obtain an outside air temperature
that is less conducive to icing.
(3) Move cabin air and defrost levers to full "ON" and position cabin
temperature lever to "HIGH" for maximum windshield defroster out-
put.
(4) Increase RPM to minimize ice build-up on propeller blades. If
excessive vibration is noted, momentarily reduce engine speed to
2200 RPM with the propeller control, then rapidly move the control
full forward.
NOTE
Repeating this operation several times should result in a
smoother running engine at normal engine operating
speeds since flexing of the propeller blades and increased
centrifugal force causes ice to shed more readily.
(5) If icing conditions are unavoidable, plan a landing at the nearest
dense smoke makes breathing difficult, occupants should use oxygen masks
II.
suitable airport. With an extremely rapid ice build-up. select a suit-
able "off airport" landing site.
until the smoke clears.
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