Page 2-60
G1000 Nav III Line Maintenance Manual
Rev. L
190-00352-00
2.6.3
Backup Path Alerts
Message Cause
Solutions
BACKUP PATH – Airdata using
backup data path.
The GDC 74A is using a
backup ARINC 429 data
path.
o
See Section 2.1.5 for
troubleshooting.
Figure 2-21. GDC 74A Data Paths
2.6.4
GDC 74(X) Field Calibration Utility
Use the GDC 74(X) Field Calibration Tool (T06-A0156-00) to adjust the calibration of GDC 74(X) units that
have failed the 14 CFR Part 43 Appendix E tests due to altitude drift.
Both the GDC 74(X) Field Calibration Tool (software) and the GDC 74(X) Field Calibration Instructions (190-
00303-82) can be downloaded from the Dealer Resource portion of the Garmin website at www.garmin.com.
First download the GDC 74(X) Field Calibration Instructions document, then use the steps listed in that document
to download and run the GDC 74(X) Field Calibration Tool.
Summary of Contents for G1000 NAV III
Page 1: ...190 00352 00 March 2008 Rev L G1000 NAV III LINE MAINTENANCE MANUAL ...
Page 28: ...Page 1 18 G1000 Nav III Line Maintenance Manual Rev L 190 00352 00 Blank Page ...
Page 120: ...Page 2 92 G1000 Nav III Line Maintenance Manual Rev L 190 00352 00 Blank Page ...
Page 184: ...Page 6 6 G1000 Nav III Line Maintenance Manual Rev L 190 00352 00 Blank Page ...
Page 248: ...Page B 34 G1000 Nav III Line Maintenance Manual Rev L 190 00352 00 Blank Page ...