
G1000 Cockpit Reference Guide for the Piper PA-46 Mirage/Matrix
190-01107-03 Rev. A 113
Annunciations & Alerts
Flight
Instruments EICAS
Nav/Com/
XPDR/Audio AFCS GPS Nav
Flight
Planning Procedures
Hazard
Avoidance
Additional
Features
Abnormal
Operation
Annun/
Alerts Appendix Index
GRS 77 MESSAGE ADVISORIES (CONT.)
Message Comments
AHRS2 GPS
– AHRS2 not receiving
backup GPS information.
The #2 AHRS is not receiving backup GPS
information. The system should be serviced.
AHRS1 GPS
– AHRS1 operating
exclusively in no-GPS mode.
The #1 AHRS is operating exclusively in no-GPS
mode. The system should be serviced.
AHRS2 GPS
– AHRS2 operating
exclusively in no-GPS mode.
The #2 AHRS is operating exclusively in no-GPS
mode. The system should be serviced.
AHRS MAG DB
– AHRS magnetic
model database version mismatch.
The #1 AHRS and #2 AHRS magnetic model
database versions do not match.
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The #1 AHRS earth magnetic field model is out of
date.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.
AHRS2 SRVC
– AHRS2 Magnetic-
field model needs update.
The #2 AHRS earth magnetic field model is out of
date.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.
GEO LIMITS
– AHRS2 too far
North/South, no magnetic compass.
MANIFEST
– GRS1 software
mismatch, communication halted.
The #1 AHRS has incorrect software installed.
The system should be serviced.
MANIFEST
– GRS2 software
mismatch, communication halted.
The #2 AHRS has incorrect software installed.
The system should be serviced.
GMU 44 MESSAGE ADVISORIES
Message Comments
HDG FAULT
– AHRS1
magnetometer fault has occurred.
A fault has occurred in the #1 GMU 44.
Heading is flagged as invalid. The AHRS uses
GPS for backup mode operation. The system
should be serviced.
HDG FAULT
– AHRS2
magnetometer fault has occurred.
A fault has occurred in the #2 GMU 44.
Heading is flagged as invalid. The AHRS uses
GPS for backup mode operation. The system
should be serviced.
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