CASA Approved
C01-01-08
5 Feb 2009
Page 3-11
Section 3
Model GA8-TC 320
Emergency Procedures
The initial indication of an electrical fire is usually the smell of burning insulation. Turning off the
Master Switch should result in the elimination of the cause of this type of fire.
3.4.6. Rough Engine/Loss of Power
1. SPARK PLUG FOULING 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 selecting the
ignition switches momentarily from BOTH to LEFT and RIGHT in turn. An obvious power loss in
single ignition operation is evidence of spark plug or magneto trouble. Assuming that the spark
plugs are the more likely cause, lean the mixture to the point where a just noticeable drop in
engine RPM occurs. If the problem does not clear up within several minutes, try a richer mixture.
If this does not solve the engine problem, plan to land at the nearest practical airfield to have
the situation investigated.
2. MAGNETO MALFUNCTION A sudden engine roughness or misfiring is usually evidence of
magneto problems. Switching magneto switches from BOTH to either LEFT or RIGHT should
identify which magneto is malfunctioning. Different power and/or mixture settings may alleviate
the problem. If not, plan to land at the nearest practical airfield to have the situation investigated.
3. LOW OIL PRESSURE If low oil pressure is accompanied by normal oil temperature, there
is a possibility that the oil pressure gauge or the relief valve is malfunctioning. A leak in the line
to the gauge is not necessarily cause for an immediate precautionary landing because the small
size of this line will prevent a rapid loss of engine oil. A landing at the closest practical airfield
is advisable however so that the source of the trouble can be investigated. If a total loss of oil
pressure is accompanied by a rise in oil temperature, an engine failure is probably imminent.
Reduce engine power immediately and select a suitable forced landing area. Use only the
minimum power required to reach the desired touch down point.
01 Aug 2011
Summary of Contents for GIPPSAERO GA8-TC 320
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