82046-PG-B1
ST3400H PILOT’S GUIDE
Page 14-1
14 TROUBLESHOOTING
14.1 Nuisance Alerts
If an alert is previously determined to be erroneous, and is repetitive at a
specific location, the alerting function can be inhibited through the use of
TAWS INH. A perceived nuisance alert should be brought to the attention
of Sandel Avionics.
14.2 Flight Data
The ST3400H has an internal recorder that automatically records a
minimum of twenty hours of flight data. (Oldest data is automatically
overwritten with most recent data.) This data can be used by Sandel
Avionics Customer Support to analyze recent alert activity.
14.3 Gray Terrain Cells
Gray terrain cells will be drawn in cases where terrain data is unavailable.
This may also be accompanied by a “TAWS FAIL” message. One
example of this is when flying beyond the coverage region of the currently
loaded terrain database.
