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indicating ice removal. If no change in approximately one minute, return
carburetor heat to COLD. If the engine is still rough, try steps below.
1. Mixture – Adjust for maximum smoothness. Engine will run rough if too
rich or too lean.
2. Electric Fuel Pump – On
3. Fuel Selector – Change tanks to see if fuel contamination is the problem.
4. Engine Gauges – Check for abnormal readings. If any gauge readings are
abnormal, proceed accordingly.
5. Magneto Switch – "L" then "R," then back to "BOTH."
If operation is satisfactory, on either magneto, proceed on that magneto
at reduced power, with mixture full rich, to a landing at the first available
airport.
If roughness persists, prepare for a precautionary landing at pilot's discretion.
SPINS
Intentional spins are prohibited in this aircraft. If a spin is inadvertently entered,
immediately use the following recovery procedures:
1. Throttle – Idle
2. Rudder – Full opposite to direction of rotation
3. Control Wheel – full forward
4. Rudder – Neutral (when rotation stops)
5. Control Wheel – as required to smoothly regain level flight attitude
Partial carburetor heat may be worse than no heat
at all, since it may partially melt the ice, which will
refreeze in the intake system. When using
carburetor heat, therefore, always use full heat
and when ice is removed, return the control to the
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