190-02246-11
GI 275 Part 23 AML STC Maintenance Manual
Rev. 1
Page 4-2
4.1 General System Troubleshooting
Before troubleshooting the GI 275 system, print the current configuration log using the procedure in
Section 2.3.4 to ensure that system configuration settings match those recorded in the aircraft’s permanent
records as applicable to the aircraft’s current configuration.
If the GI 275 configuration does not match the configuration log retained with the aircraft permanent
records, load the saved configuration from the USB drive retained with the aircraft records. If this cannot
be accomplished, or does not correct the configuration, the issue must be corrected by a Garmin dealer
using the configuration instructions provided in Section 5 of the GI 275 installation manuals (refer to
Table 1-1). Basic troubleshooting of the GI 275 system can be accomplished using the instructions
provided in Table 4-1.
Table 4-1 GI 275 Failures
4.1.1 System Maintenance Log
The GI 275 system has a maintenance and error log that can be accessed or printed to assist with system
maintenance and troubleshooting.
The maintenance and error log can be printed using the following procedure:
1. Power on all GI 275s in the system in Configuration mode in accordance with Section 2.3.1.
2. Insert a USB drive into the USB dongle or GSB 15 (if installed). A USB icon should appear on the
left of the display once the GI 275 has recognized the device. If the icon doesn’t appear after 1
minute, remove the drive and re-insert it.
3. Navigate to the
Maintenance
page.
4. Press the
Export Logs
button.
5. Select which log to download: Assert, Flight Data, Aircraft Report, or Fault Log.
◦ For downloading Flight Data logs, select the desired option for the Download Log Style and
enter the applicable date if downloading flight data logs for a specific date
6. Press the
Start Download
button.
7. Once the save process is completed, disconnect the USB drive and insert it into a computer.
8. On the computer, navigate to the USB drive and open the “maintenance_logs” directory.
9. Open the .htm file.
10. The file should open in your computer’s Internet browser and can be printed using your selected
Internet browser print function (in most cases, pressing
Ctrl
+
P
buttons simultaneously will
access this function).
The maintenance log will display reported system faults. The alert message that is displayed on the GI 275
for that fault (if any) will display frequency, most recent occurrence time of the fault, and any additional
information about the fault that might be helpful. If any faults are reported on the maintenance log, refer to
the troubleshooting flowcharts contained in Section 4.3.
Symptom
Recommended Action
GI 275 screen is blank
Check power/ground wiring for GI 275.
EIS Gauge Fault/Failure
Troubleshoot the problem using the EIS gauge
troubleshooting flowchart provided in Section 4.3.
An alert message is displayed on the
GI 275 or present in the maintenance log
Troubleshoot the alert message using the flowcharts
provided in Section 4.3.
