14 of 48 P/N 13772-134
Section 9 Cirrus Design
Supplements SR22 / SR22T
Unreliable Fluid Quantity Warning
PFD Alerts Window: “Left and right fluid quantities unknown (TKS)”
Both fluid quantities are unknown and both tanks are closed.
1. ICE PROTECT System Switch.................................................OFF
2. Icing Conditions ........................................................ AVOID / EXIT
Low Pressure Caution.
PFD Alerts Window: “Tail pressure is low (TKS)”
• Caution •
A persistent Low Pressure Caution indicates a condition in the
tail section of Anti-Ice System and warrants increased caution
because the tail section’s smaller leading edge radius will
typically collect ice more quickly and ice accretion is more
difficult to monitor.
1. ICE PROTECT A and B Circuit Breakers................................. SET
2. Fluid Quantity................................... SWITCH TO FULLEST TANK
3. WIND SHLD Push-Button ...................................................PRESS
a. Repeat operation of windshield pump to verify metering
pumps are primed properly as evidenced by deicing fluid
exiting windshield nozzles.
4. ICE PROTECT Mode Switch..................................................HIGH
If caution annunciation extinguishes:
a. Anti-Ice System ....................................................... MONITOR
If caution annunciation does not extinguishes or intermittent:
a. PUMP BKUP Switch........................................................... ON
b. Icing Conditions .................................................. AVOID / EXIT
ANTI ICE QTY
ANTI ICE PSI
Revision 04: 12-17-10
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