Garmin G1000 Mooney M20TN - Manual (Page 326)

190-00647-01 Rev. B Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 315
HAZARD AVOIDANCE
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
SYSTEM STATUS
During G1000 power-up, TAWS conducts a self-test of its aural and visual annunciations. The system test can
also be manually initiated. An aural alert is issued at test completion. TAWS System Testing is disabled when
ground speed exceeds 30 knots.
Alert Type
PFD/MFD Alert
Annunciation
TAWS Page
Annunciation
Aural Message
System Test in Progress TAWS TEST None
System Test Pass None None “TAWS System Test OK”
TAWS System Test Fail TAWS FAIL “TAWS System Failure”
Table 6-8 TAWS System Test Status Annunciations
Manually testing the TAWS System:
1) Select the TAWS Page.
2) Press the MENU Key (Figure 6-63).
3) Select ‘Test TAWS’ and press the ENT Key to confirm the selection.
Figure 6-63 TAWS Page Menu
TAWS 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 “TAWS System Failure” is generated
along with the ‘TAWS FAIL’ alert annunciation.
TAWS 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
‘TAWS N/A’ is generated in the annunciation window and on the TAWS Page. The aural message “TAWS Not
Available” is generated. When the GPS signal is re-established and the aircraft is within the database coverage
area, the aural message “TAWS Available” is generated.
Alert Type
PFD/MFD Alert
Annunciation
TAWS Page
Annunciation
Aural Message
No GPS position
Excessively degraded GPS signal
NO GPS POSITION “TAWS Not Available”
GPS signal re-established None None “TAWS Available”
Table 6-9 TAWS Status Annunciations