In-Flight Emergency Procedures - Continental Motors A Series Operator's Manual

SECTION III
IN-FLIGHT EMERGENCY PROCEDURES
If a malfunction should occur in flight, certain remedial actions
may eliminate or reduce the problem. Some malfunctions which
might conceivably occur are listed in this section. Recommended
corrective action is also included; however, it should be recognized
that no single procedure will necessarily be applicable to every
situation.
A thorough knowledge of the aircraft and engine systems will be
an invaluable asset to the pilot in assessing a given situation and
dealing with it accordingly.
ENGINE ROUGHNESS.
Observe engine for visible damage or evidence of smoke or flame.
Extreme roughness may be indicative of propeller blade failure.
If
any of these characteristics are noted, follow aircraft
manufacturer's instructions.
1. Engine Instruments - Check. If abnormal indications appear,
proceed according to Abnormal Engine Instrument Indications
(this section).
2. Mixture-Adjust as appropriate to power setting being used. Do
not arbitrarily go to Full Rich as the roughness may be caused by
an already overrich mixture.
3. Magnetos - Check On.
If engine roughness does not disappear after the above, the
following steps should be taken to evaluate the ignition system.
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