
Garmin G950 Cockpit Reference Guide for the Tecnam P2006T
190-01147-00 Rev. A
52
Annunciations & Alerts
Flight
InstrumentsEIS
Nav/Com/
XPDR/AudioAFCSGPS Nav
Flight
PlanningProcedures
Hazard
Avoidance
Additional
Features
Abnormal
Operation
Annun/
AlertsAppendixIndex
GRS 77 MESSAGE ADVISORIES (CONT.)
Message Comments
AHRS1 GPS
– AHRS1 not receiving
backup GPS information.
The #1 AHRS is not receiving backup GPS
information. The G950 system should be serviced.
AHRS1 GPS
– AHRS1 operating
exclusively in no-GPS mode.
The #1 AHRS is operating exclusively in no-GPS
mode. The G950 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The #1 AHRS earth magnetic field model is out
of date.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
G950 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 G950 system should
be serviced.
MANIFEST
– GMU1 software
mismatch, communication halted.
The GMU 44 has incorrect software installed. The
G950 system should be serviced.
GDC 74A MESSAGE ADVISORIES
Message Comments
MANIFEST
– GDC1 software
mismatch, communication halted.
The GDC 74A has incorrect software installed.
The G950 system should be serviced.
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