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in this supplement adds to, supersedes, or deletes information in the
basic SR22 Pilot’s Operating Handbook
• Note •
This POH Supplement Change, dated Revision 02: 11-17-09,
supersedes and replaces Revision 01 of this POH
Supplement dated 04-07-09.
Revision 02: 11-17-09
2 of 44 P/N 13772-134
Section 9 Cirrus Design
Supplements SR22
Section 1 - General
This system, when compliant with the Kinds of Operation Equipment
List and Minimum Dispatch Fluid Level, 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.
• Caution •
Use of the Windshield De-Ice System may obstruct view due
to residual anti-ice fluid on windshield. Do not operate
windshield de-ice system within 30 seconds of landing.
• WARNING •
Holding in icing conditions for longer than 45 minutes may
reduce margins and could result in inadequate handling and
control characteristics.
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 information have been
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
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.
Revision 02: 11-17-09
P/N 13772-134 3 of 44
Cirrus Design Section 9
SR22 Supplements
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.
• Accumulation of ice on the upper surface or lower surface of the
wing aft of the protected area.
• Accumulation of ice on the propeller spinner farther back than
normally observed.
If the airplane encounters conditions that are determined to contain
freezing rain, freezing drizzle, or severe icing, immediately exit
condition by changing altitude, turning back, or if clear air is known to
be immediately ahead, continue on course. Once clear of these
weather conditions, report encountered weather to air traffic control
• Note •
The National Weather Service's Automated Surface
Observing Systems (ASOS) program does not report freezing
drizzle. It is the pilot's responsibility to evaluate and
understand weather along the intended route and identify any
potential weather hazards thru evaluation of, but not limited to,
Current Observations, Pilot Reports, Area Forecasts,
AIRMETS, SIGMETS, and NOTAMS.
Revision 02: 11-17-09
4 of 44 P/N 13772-134
Section 9 Cirrus Design
Supplements SR22
Airspeed Limitations
Minimum airspeed for flight into known icing conditions......... 95 KIAS*
*Includes all phases of flight, including approach, except as required for takeoff and
landing.
Max airspeed Anti-Ice System operation........177 KIAS and 204 KTAS
Recommended holding airspeed............................................120 KIAS
Weight Limits
Maximum weight for flight into known icing conditions .............. 3400 lb
Performance Limits
Refer to Section 5 - Performance for limitations that reflect effects on
lift, drag, thrust and operating speeds related to operating in icing
conditions.
Minimum Operating Temperature
Minimum Operating Temperature for Anti-Ice System..... -30°F (-34°C)
Kinds of Operation
This system allows flight into known icing as defined by Title 14 of the
Code of Federal Regulations (CFR) Part 25, Appendix C - Envelopes
for Continuous Maximum and Intermittent Maximum Icing.
　
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