Garmin G500 Pilot's Manual page 256

Alert Message
AHRS1/2 GPS
AHRS1/2 SRVC
AHRS1/2 TAS
CAL LOST
CNFG
MISMATCH
6-2
Description
• AHRS1 using
backup GPS.
• AHRS1 magnetic-
field model needs
update.
• AHRS1 not receiving
true airspeed.
• Displayed heading
and attitude data is
still valid.
• Additional loss of
GPS data will cause
loss of heading and
attitude data.
• Calibration Data
Lost.
• Navigation,
Autopilot, and
Flight Director
functionality is
unreliable.
• PFD/MFD coloration
may be incorrect.
• GDU 1-2 airframe
configuration
settings disagree.
Garmin G500 Pilot's Guide
Action
• If the system has dual GPS
navigators, the primary GPS
navigation information is not being
forwarded to the AHRS. The AHRS
is using GPS position information
from the secondary navigator.
• Contact your Garmin dealer for
service.
• G500 requires service to update
the magnetic field model.
• Contact your Garmin dealer for
service.
• Check ADC cable.
• Contact your Garmin dealer for
service.
• Contact your Garmin dealer for
service.
• Contact your Garmin dealer for
service.
190-01102-02 Rev. B