190-02177-02 Rev. A
Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
329
HAZARD AVOIDANCE
TAWS-B 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 system
displays the ‘TAWS N/A’ annunciation, and issues the
“TAWS Not Available”
voice alert. When the GPS
signal integrity returns and the aircraft is within the database coverage area, the system issues the voice alert,
“TAWS Available”
.
Alert Type
PFD/TAWS-B
Page Alert
Annunciation
TAWS-B Page Center Banner
Annunciation
Voice Alert
System Test in progress
TAWS TEST
TAWS TEST
None
System Test pass
None
None
“TAWS System Test OK”
TAWS-B FLTA Alerting Inhibited
TAWS INH
None
None
No GPS position
TAWS N/A
NO GPS POSITION
“TAWS Not Available”
Excessively degraded GPS signal;
or Out of database coverage
area
TAWS N/A
None
“TAWS Not Available”
TAWS-B System Test Fail; Terrain
or Obstacle database unavailable
or invalid; Invalid software
configuration; or System audio
fault
TAWS FAIL
TAWS FAIL
“TAWS System Failure”
MFD Terrain or Obstacle
database unavailable or invalid.
TAWS operating with PFD Terrain
or Obstacle databases
None
TERRAIN DATABASE FAILURE
None
* “TAWS Available” will be heard when sufficient GPS signal is received, or Terrain database coverage area re-
entered.
Table 6-17 TAWS-B System Status Annunciations