
Garmin G1000 Cockpit Reference Guide for the Diamond DA42NG
190-00963-01 Rev. B 77
Annunciations & Alerts
Flight
Instruments EIS
Nav/Com/
XPDR/Audio AFCS GPS Nav
Flight
Planning Procedures
Hazard
Avoidance
Additional
Features
Abnormal
Operation
Annun/
Alerts Appendix Index
GTX 33 MESSAGE ADVISORIES (CONT.)
Message Comments
XPDR1 SRVC
– XPDR1 needs
service. Return unit for repair.
The #1 transponder should be serviced when
possible.
XPDR1 FAIL
– XPDR1 is
inoperative.
There is no communication with the #1
transponder.
GRS 77 MESSAGE ADVISORIES
Message Comments
AHRS1 TAS
– AHRS1 not receiving
valid airspeed.
The #1 AHRS is not receiving true airspeed from
the air data computer. The AHRS relies on GPS
information to augment the lack of airspeed.
The G1000 system should be serviced.
AHRS1 GPS
– AHRS1 using backup
GPS source.
The #1 AHRS is using the backup GPS path.
Primary GPS path has failed. The G1000 system
should be serviced when possible.
AHRS1 GPS
– AHRS1 not receiving
any GPS information.
The #1 AHRS is not receiving any or any useful
GPS information. Check AFMS limitations. The
G1000 system should be serviced.
AHRS1 GPS
– AHRS1 not receiving
backup GPS information.
The #1 AHRS is not receiving backup GPS
information. The G1000 system should be
serviced.
AHRS1 GPS
– AHRS1 operating
exclusively in no-GPS mode.
The #1 AHRS is operating exclusively in no-GPS
mode. The G1000 system should be serviced.
AHRS1 SRVC
– AHRS1 Magnetic-
field model needs update.
The #1 AHRS earth magnetic field model is out
of date. Update magnetic field model when
practical.
GEO LIMITS
– AHRS1 too far
North/South, no magnetic compass.
The aircraft is outside geographical limits for
approved AHRS operation. Heading is flagged
as invalid.
MANIFEST
– GRS1 software
mismatch, communication halted.
The #1 AHRS has incorrect software installed.
The G1000 system should be serviced.
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