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10-48
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. P
Terrain
10.7.6.4 HTAWS Not Available Alert
Garmin HTAWS requires a 3-D GPS navigation solution along with
specific vertical accuracy minimums. Should the navigation solution become
degraded, or if the aircraft is out of the database coverage area, the annunciation
“HTAWS N/A” is shown in the annunciation window. When the GPS signal is
re-established and the aircraft is within the database coverage area, the “HTAWS
N/A” annunciation is removed.
10.7.6.5 HTAWS Failure Alert
HTAWS continually monitors several system-critical items, such as database
validity, hardware status, and GPS status. If the terrain/obstacle database is not
available, the aural message
“HTAWS System Failure”
is issued along with the
“HTAWS FAIL” annunciation.
10.7.6.6 HTAWS Alert Summary
The aural alert voice gender is configurable to be either male or female. Contact
your Garmin installer for further information on configuring the alert system.
HTAWS
Annunciation
Pop-Up Alert
Aural Message
Description
None
“HTAWS System Failure”
HTAWS has failed
None
None
HTAWS has been
inhibited by the
crew, or the
aircraft ground
speed is below 30
knots (automatic
inhibiting).
None
“HTAWS Not Available”
HTAWS not
available.
“Caution - Terrain, Terrain”
Forward Looking
Terrain Avoidance
Caution for
Terrain
“Warning - Terrain, Terrain”
Forward Looking
Terrain Avoidance
Warning for
Terrain
Содержание GTN 625
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