Pilot's Guide
190-00663-03 Rev. A
Garmin G1000 Pilot’s Guide for the Beechcraft C90A/GT/GTi
559
APPENDIX A
GDL 69A MESSAGE ADVISORIES
Message Comments
GDL69 CONFIG
– GDL 69 config
error. Config service req’d.
GDL 69 configuration settings do not match those of backup configuration memory.
The G1000 system should be serviced.
GDL69 FAIL
– GDL 69 has failed. A failure has been detected in the GDL 69. The receiver is unavailable. The G1000
system should be serviced
MANIFEST
– GDL software mismatch,
communication halted.
The GDL 69 has incorrect software installed. The G1000 system should be serviced.
GDC 74B MESSAGE ADVISORIES
Message Comments
ADC1 ALT EC
– ADC1 altitude error
correction is unavailable.
GDC1 or GDC2 is reporting that the altitude error correction is unavailable. The
G1000 system should be serviced.
ADC2 ALT EC
– ADC2 altitude error
correction is unavailable.
ADC1 AS EC
– ADC1 airspeed error
correction is unavailable.
GDC1 or GDC2 is reporting that the airspeed error correction is unavailable. The
G1000 system should be serviced.
ADC2 AS EC
– ADC2 airspeed error
correction is unavailable.
ADC1 SERVICE – ADC1 needs service.
Return unit for repair.
The GDC1 should be serviced..
ADC2 SERVICE – ADC2 needs service.
Return unit for repair.
The GDC2 should be serviced..
MANIFEST
– GDC1 software
mismatch, communication halted.
The GDC 74B has incorrect software installed. The G1000 system should be serviced.
MANIFEST
– GDC2 software
mismatch, communication halted.
GCU 475 MESSAGE ADVISORIES
Message Comments
GCU CNFG
– GCU Config error.
Config service req’d.
GCU 475 configuration settings do not match those of backup configuration memory.
The G1000 system should be serviced.
GCU FAIL
– GCU is inoperative. A failure has been detected in the GCU 475. The GCU 475 is unavailable.
MANIFEST
– GCU software
mismatch, ommunication halted.
The GCU 475 has incorrect software installed. The G1000 system should be serviced.
GCU KEYSTK
– GCU [keyname] Key
is stuck
A key is stuck on the GCU 475 bezel. Attempt to free the stuck key by pressing it
several times. The G1000 system should be serviced if the problem persists.