P/N 13772-134 15 of 48
Cirrus Design Section 9
SR22 / SR22T Supplements
High Pressure Caution
PFD Alerts Window: “Pressure is high (TKS)”
Typically indicates clogged filter.
1. Evidence of Anti-Ice Flow .............................. MONITOR / VERIFY
2. Icing Conditions ........................................................ AVOID / EXIT
Airspeed Caution
PFD Alerts Window: “Airspeed is too low/high for ice protection (TKS)”
ANTI ICE SPD Low: Airspeed is less than 95 KIAS
ANTI ICE SPD High: Airspeed is greater than 177 KIAS or 204 KTAS
1. Airspeed.................................................... MAINTAIN 95-177 KIAS
or less than 204 KTAS
Lift Transducer Heater Failure Caution
PFD Alerts Window: “Stall warning/AoA heater has failed”
1. STALL VANE HEAT Circuit Breaker.................................... CYCLE
2. PITOT HEAT Circuit Breaker............................................... CYCLE
3. Icing Conditions ........................................................ AVOID / EXIT
4. Fly aircraft normally using airframe buffet as the stall warning. Ice
accumulations on the lift transducer vane may result in unreliable
stall warning system operation.
ANTI ICE PSI
ANTI ICE SPD
ANTI ICE HTR
Revision 04: 12-17-10