FSD International
Commander 115 TC
Pilot Operating Handbook
- 23 –
Copyright© 2008 by FSD International. All rights reserved.
For use with Microsoft Flight Simulator only. Not to be used for real-world aviation.
3.7.7 INADVERTENT FLIGHT INTO ICING CONDITIONS
Flight into known icing conditions is prohibited. In the event of an inadvertent icing encounter it is
imperative that action be initiated to vacate these conditions, right now!! A 1800 turn and, often, a
climb is appropriate. In any case, the pilot must take prompt action to get out of the icing
conditions. If the icing conditions persist and cannot be escaped, then the airplane should be flown
to the nearest suitable airport and landed. If airframe ice builds extremely rapidly, the pilot should
plan for an off-airport forced landing. Approach speeds should be increased 5 to 20 KIAS
depending upon icing severity.
3.7.8 STATIC SOURCE BLOCKED
If erroneous readings of the static source instruments (airspeed, altimeter, and vertical speed) are
suspected, the alternate static source should be selected, thereby supplying cabin static pressure
to these instruments. To avoid excessive errors on these instruments, the heater and defroster
should be on and the overhead vents should be closed. (Calibration Charts in Section 5 are
provided to illustrate airspeed and altitude errors associated with the use of the alternate static
source.
3.7.9 MAGNETO MALFUNCTION
A sudden engine roughness or misfiring is usually evidence of magneto problems. Switching from
BOTH to either L or R ignition switch position will identify which magneto is malfunctioning. Select
different power settings and enrich the mixture to determine if continued operation on BOTH
magnetos is possible. If not, switch to the good magneto and proceed to the nearest airport for
repairs.
3.7.10 ENGINE DRIVEN FUEL PUMP FAILURE
A failure of the engine driven fuel pump will be shown by a sudden reduction in the unmetered fuel
pressure indication (and in the fuel flow indication) immediately prior to a loss of power while
operating on a tank containing adequate fuel. Activation of the auxiliary fuel pump will restore
engine power. Proceed to the nearest airport for repairs.
3.7.11 LOW OIL PRESSURE
If a low oil pressure indication is accompanied by nominal oil temperature, there is a possibility
that the oil pressure transducer or relief valve are malfunctioning. A landing should be made at the
nearest airport to inspect for the source of the low indication.
If a total loss of oil pressure is accompanied by a rise in oil temperature, an engine failure is
probably imminent. Reduce to the minimum engine power and execute a precautionary landing
while power still exists.
3.7.11 HIGH CYLINDER HEAD/OIL TEMPERATURE
If high cylinder head and/or oil temperature indications are experienced, open the cowl flaps.
Enrich the mixture and increase airspeed if practical, or reduce power. If temperatures remain
excessive, proceed to the nearest airport to investigate the cause.
