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G500 Cockpit Reference Guide
190-01102-03 Rev B
ALERTS
ALERTS
Alert Description
GAD 43 (cont’d) AHRS Attitude Invalid Fault
AHRS A429 Heading Timeout Fault
AHRS A429 Heading Invalid Fault
Reference Timeout Fault
Application SCI Integrity Fault
Confi guration Integrity Fault
Calibration Integrity Fault
Unit Fault
Power Supply Fault
GAD 43 FAIL GAD 43 communication lost.
GATE MODE Automated testing is on.
GEO LIMITS AHRS too far North/South, no magnetic compass.
GPS1/2 FAIL No GPS1 or GPS2 data is available.
GPS(1/2) PPS FAIL
The PPS signal has not been received in more than 5
seconds.
GWX CONFIG GWX confi guration error. Confi guration service required.
GWX SERVICE GWX need service. Return unit for repair.
HDG FAULT AHRS 1 magnetometer fault has occurred.
HDG LOST HDG features disabled or defaulted to GPS1 TRK.
<LRU> CONFIG
Error in confi guration of specifi c LRU, where <LRU>
denotes specifi c LRU.
<LRU> COOLING Specifi c LRU has poor cooling, reducing power usage.
<LRU> DB ERR Database for specifi c LRU is corrupt.
<LRU> SERVICE Specifi c LRU needs service.
<LRU> VOLTAGE <LRU> has low voltage reducing power usage.
MANIFEST
GDU has received product data for an LRU that should
have a manifest entry, but is not in the manifest.
NAV1/2 FAIL No navigation receiver #1 or #2 data.
SIMULATOR Sim Mode is active. Do not use for navigation.
