Cirrus SR22 Pilot's Operating Handbook And Flight Manual page 456

Section 9
Supplements
Section 1 - General
This system, when compliant with the Kinds of Operation Equipment
List and Minimum Dispatch Fluid Quantity, allows flight in icing
conditions as defined by Title 14 of the Code of Federal Regulations
(CFR) Part 25, Appendix C - Envelopes for Continuous Maximum and
Intermittent Maximum Icing.
Section 2 - Limitations
In icing conditions the airplane must be operated as described in the
operating procedures section of this manual. Where specific
operational speeds and performance
established for such conditions, this information must be used.
At the first sign of Anti-Ice System malfunction, the aircraft must
immediately exit icing conditions.
Environmental Conditions
Flight into freezing rain or freezing drizzle is prohibited.
Known icing conditions are defined by FAR Part 25, Appendix C.
These conditions do not include, nor were tests conducted in all icing
conditions that may be encountered such as freezing rain, freezing
drizzle, mixed conditions or conditions defined as severe. Flight in
these conditions must be avoided. Some icing conditions not defined
in FAR Part 25 have the potential of producing hazardous ice
accumulations, which exceed the capabilities of the airplane's Anti-Ice
System, and/or create unacceptable airplane performance including
loss of control.
Inadvertent operation in freezing rain, freezing drizzle, mixed
conditions, or conditions defined as severe may be detected by:
• Visible rain at temperatures below 41°F (5°C) OAT.
• Droplets that splash or splatter on impact at temperatures below
below 41°F (5°C) OAT.
• Ice on or behind the wing or horizontal tail panels that cannot be
removed with Anti-Ice System HIGH flow.
• Unusually extensive ice accreted on the airframe in areas not
normally observed to collect ice.
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P/N 13772-150
Original Issue: 02-01-13
SR22
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