3.2.5 TAWS CAUTION (Terrain or Obstacle Ahead, Sink Rate, Don't
Sink)
When a TAWS CAUTION occurs, take corrective action until the alert ceases.
Stop descending or initiate either a climb or a turn, or both as necessary, based
on analysis of all available instruments and information.
TAWS annunciators external to the GTN may not indicate the
exact threat causing the alert. Example: WIRE alerts may be
annunciated as TERR or OBSTACLE on external devices.
3.2.6 TAWS INHIBIT
The TAWS Forward Looking Terrain Avoidance (FLTA) and Premature
Descent Alerts (PDA) functions may be inhibited to prevent alerting, if desired.
Refer to GTN Cockpit Reference Guide for additional information.
To Inhibit TAWS:
Home Hardkey ........................................................................................... PRESS
Terrain Button ............................................................................................ PRESS
Menu Button .............................................................................................. PRESS
TAWS Inhibit Button .................................................... PRESS TO ACTIVATE
3.2.7 TER N/A and TER FAIL
If the amber TER N/A or TER FAIL status annunciator is displayed, the
system will no longer provide TAWS alerting or display relative terrain and
obstacle elevations. The crew must maintain compliance with procedures that
ensure minimum terrain and obstacle separation.
3.2.8 DATA SOURCE - HEADING SOURCE INOPERATIVE OR
CONNECTION TO GTN LOST MESSAGE
Without a heading source to the GTN, the following limitations apply:
Roll steering will not be provided to the autopilot for heading legs. The
autopilot must be placed in HDG mode for heading legs.
Map cannot be oriented to Heading Up.
Overlaying traffic data from a TAS/TCAS I or Garmin ADS-B-IN unit
interfaced to an on board traffic system will not be displayed on the main
map display. The flight crew must use the dedicated traffic page on the
GTN system to display TAS/TCAS I or Garmin ADS-B-IN traffic data.
All overlaying StormScope® data on the main map display. The flight crew
must use the dedicated StormScope® page on the GTN system to display
StormScope® data.
Onboard weather radar overlay on the main map will not be displayed. The
flight crew must utilize the dedicated weather radar page on the GTN
system to view weather radar data from the onboard weather radar.
StormScope® must be operated in accordance with Section 7.8 when no heading
is available.
190-01007-A2 Rev. 6
Page 22
NOTE
AFMS, Garmin GTN GPS/SBAS System
FAA APPROVED
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