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Garmin G1000 Cockpit Reference Guide for the DA40/40F
12-7
SECTION 12 – ANNUNCIATIONS
& ALERTS
System Annunciation
Comment
Display system is not receiving airspeed input from air data computer.
Display is not receiving altitude input from the air data computer.
Display is not receiving vertical speed input from the air data computer.
Display is not receiving valid heading input from AHRS.
GPS information is either not present or is invalid for navigation use.
Note that AHRS utilizes GPS inputs during normal operation. AHRS
operation may be degraded if GPS signals are not present (see AFMS).
Display is not receiving valid transponder information.
Other Various Red X Indications
A red ‘X’ through any other display field, such as engine instrumentation
fields, indicates that the field is not receiving valid data.