Garmin GTN 625 Pilot's Manual page 228

10.3.8.5
Foreword
TAWS also has an inhibit mode that deactivates the PDA/FLTA aural and
Getting
visual alerts. Pilots should use discretion when inhibiting TAWS and always
Started
remember to enable the system when appropriate. Only the PDA and FLTA
alerts are disabled in the inhibit mode. After cycling power, TAWS will no longer
Xpdr Ctrl
be inhibited.
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Figure 10-14 TAWS-B Alerting Disabled (TAWS Inhibited) Annunciation
Map
Traffic
Terrain
Weather
10.3.8.6
Nearest
The Negative Climb Rate (NCR) After Take-Off alert (also referred to as
Services/
"Altitude Loss After Take-Off") provides alerts when the system determines the
Music
aircraft is losing altitude (closing upon terrain) after takeoff. The aural message
"Don't Sink" is given for NCR alerts, accompanied by an annunciation and a
Utilities
pop-up terrain alert on the display. NCR alerting is only active when departing
System
from an airport and when the following conditions are met:
• Height above the terrain is less than 700 feet
Messages
• Distance from the departure airport is 2 NM or less
Symbols
• Heading change from the departure heading is less than 110º
Appendix
The NCR alerting parameters as defined by TSO-C151c are shown below.
Index
10-16
Inhibiting/Enabling TAWS-B Alerting
TAWS Alerts
Inhibited
TAWS Inhibited
Annunciation
1. While viewing the Terrain page, touch the Menu key.
2. Touch the TAWS Inhibit key to inhibit or enable TAWS (choice
dependent on current state). A green bar in the key indicates
the TAWS is inhibited.
Negative Climb Rate After Take-Off Alert (NCR)
Garmin GTN 625/635/650 Pilot's Guide 190-01004-03 Rev. F