Pilot Actions - Garmin GTN 625 Pilot's Manual

HTAWS
Foreword
Annunciation
Getting
None
Started
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
NOTE: HTAWS Caution Alerts are displayed as constant black text on a yellow
Wpt Info
background; HTAWS Warning Alerts are displayed as constant white text on a red
background.
Map
Traffic

10.4.18 Pilot Actions

Terrain
If an HTAWS warning and associated aural are received, the pilot should
immediately maneuver the rotorcraft in response to the alert unless the terrain
Weather
or obstacle is clearly identified visually and determined by the pilot not to be a
factor to the safety of the operation.
Nearest
A HTAWS caution alert indicates terrain or obstacle nearby. If possible
Services/
visually locate the terrain or obstacle for avoidance. A HTAWS warning alert
Music
may follow a HTAWS caution unless the aircraft' s path towards the terrain or
Utilities
obstacle is changed.
NOTE: Display of terrain and obstacles on the display is supplemental data
System
only. Maneuvering solely by reference to the terrain and obstacle data is
not recommended or authorized.
Messages
Symbols
Appendix
Index
10-36
Pop-Up Alert
None
Table 10-10 HTAWS Alert Summary
Garmin GTN 625/635/650 Pilot's Guide
Aural Message
"Five Hundred"
"Four Hundred"
"Three Hundred"
"Two Hundred"
"One Hundred"
"Fifty"
Description
HTAWS provides
optional 500 ft
through 100 ft (in
100 ft increments)
altitude call
out alerts.
An additional
value of 50 ft
is available if a
radar altimeter is
installed.
190-01004-03 Rev. F