Eclipse 500 System Manual page 306

Section 13. Air Data
13.7 Abnormal Procedures
13.7.1 Air Data Disagreement
If abnormal indications are generated by the ADC (i.e. airspeed, altitude, attitude,
heading, and temperature) the incorrect source is flagged to the pilot via one of
several DISAGREE caution and advisory messages and requires
DISAGREE CAS MESSAGES:
ADC
AIRSPEED DISAGREE (Caution)
⎯
ALTITUDE DISAGREE (Caution)
⎯
AHRS
ATTITUDE DISAGREE (Caution)
⎯
HEADING DISAGREE (Caution)
⎯
Temperature
TAT DISAGREE (Advisory)
⎯
These messages require pilot action to compare air data in question with the other
source(s) of information. Once a valid source is determined, the pilot selects the new
source via the SENSOR page on the MFD. A TAT DISAGREE advisory message
requires that the pilot view the ICE protection synoptic to compare temperature
indications.
13.7.2 Sensor Failure
The air data system is a redundant design, preventing complete loss of air data in the
event of a component failure. Should any component, ADC, AHRS, or GPS fail, one
of the following messages will appear:
AHRS 1 FAIL (CAUTION)
AHRS 2 FAIL (CAUTION)
ADC 1 FAIL (ADVISORY)
ADC 2 FAIL (ADVISORY)
ADC 3 FAIL (ADVISORY)
GPS 1 FAIL (ADVISORY)
GPS 2 FAIL (ADVISORY)
With ADC and AHRS SRC on the SENSOR page selected to AUTO, the ACS will
automatically revert to using the operating source for air data information. Since all
air data information is sent through the on-side AHRS to the ACS, should an AHRS
fail with AUTO selected, the affected PFD will use the AHRS and ADC from the
opposite side. Example: AHRS 1 fails; the Left PFD will use AHRS 2 and ADC 2.
CAUTION:
A failure of ADC 1, 2 or AHRS 1, 2 will reduce functionality such that flight in
RVSM airspace may NOT be continued. The autopilot will also disengage and
NOT be able to be reengaged.
There is no pilot control over GPS selection. In the event of a GPS failure, the ACS
will automatically revert to the operating GPS.
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Copyright © — Eclipse Aviation Corporation
Eclipse 5OO Systems Manual
Version 2.0 April 2007