Cirrus SR22 Pilot Operating Handbook page 353

Cirrus Design
SR22 / SR22T
Section 3A - Abnormal Procedures
Altitude Miscompare
ALT MISCOMP Caution
For dual ADC installations, altitude difference is greater than 200 feet
between ADC1 and ADC2.
1. Altitude ............. CROSS-CHECK ADC1 against Standby Altimeter
2. ADC2 ................................................................................ SELECT
a. Press SENSOR softkey on PFD, followed by ADC2 softkey
b. Expect USING ADC2 message on PFD
3. Altitude ............. CROSS-CHECK ADC2 against Standby Altimeter
4. ADC ............................................................ SELECT more reliable
a. Press SENSOR softkey, then select the ADC that provided the
most reliable altitude indication
Airspeed Miscompare
IAS MISCOMP Caution
For dual ADC installations, airspeed difference is greater than 7 knots
between ADC1 and ADC2.
1. Airspeed........... CROSS-CHECK ADC1 against Standby Airspeed
Indicator
2. ADC2 ................................................................................ SELECT
a. Press SENSOR softkey on PFD, followed by ADC2 softkey
b. Expect USING ADC2 message on PFD
3. Airspeed........... CROSS-CHECK ADC2 against Standby Airspeed
Indicator
4. ADC ............................................................ SELECT more reliable
a. Press SENSOR softkey, then select the ADC that provided the
most reliable airspeed indication
P/N 13772-135
Revision 04: 09-08-14
ALT MISCOMP
IAS MISCOMP
Section 9
Supplements
5 of 32