Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 44

SECTION 3
EMERGENCY PROCEDURES
NOTE
CESSNA
MODELT210M
If
disorientation precludes a visual determination of the
direction of rotation, the symbolic airplane in the turn
coordinator or the needle of the turn and bank indicator
may be referred to for this information.
ROUGH ENGINE OPERATION OR LOSS OF
POWER
SPARK PLUG FOULING
A slight engine roughness in flight may be caused by one or more
spark plugs becoming fouled by carbon or lead deposits. This may be
verified by turning the ignition switch momentarily from BOTH to either L
or R position. An obvious power loss in single ignition operation is
evidence of spark plug or magneto trouble. Assuming that spark plugs are
the more likely cause, lean the mixture to the recommended lean setting for
cruising flight.
If
the problem does not clear up in several minutes,
determine if a richer mixture setting will produce smoother operation. If
not, proceed to the nearest airport for repairs using the BOTH position of
the ignition switch unless extreme roughness dictates the use of a single
ignition position.
MAGNETO MALFUNCTION
A sudden engine roughness or misfiring is usually evidence of
magneto problems. Switching from BOTH to either Lor R ignition switch
position will identify which magneto is malfunctioning. Select different
power settings and enrichen the mixture to determine if continued opera-
tion on BOTH magnetos is practicable. If not, switch to the good magneto
and proceed to the nearest airport for repairs.
ENGINE-DRIVEN FUEL PUMP FAILURE
Failure of the engine-driven fuel pump will be evidenced by a sudden
reduction in the fuel flow indication prior to a loss of power, while
operating from a fuel tank containing adequate fuel.
In the event of an engine-driven fuel pump failure during takeoff, ~ ,
immediately hold the left half of the auxiliary fuel pump switch in the HI
position until the airplane is well clear of all obstacles. Upon reaching a
safe altitude, reduce the power settings to give cruise power. Then release
the HI side of the switch, allowing the right side of the switch to remain in
the ON position for level flight.
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