Garmin G1000 Quest Kodiak - Manual (Page 272)

Garmin G1000 Pilot’s Guide for the Quest Kodiak 100 190-00590-00 Rev. C 6-40
HAZARD AVOIDANCE
Figure 6-46 shows the NCR alerting parameters as defined by TSO-C151b.
1000
800
600
400
200
Height Above Terrain (Feet
)
Altitude Loss (Feet)
0 20 40 60 80 100 120 140
“DON’T SINK” “DON’T SINK”
1000
900
800
700
600
500
400
300
200
100
Height Above Terrain (Feet
)
Sink Rate (Feet Per Minute)
0
“DON’T SINK” “DON’T SINK”
500 1000 1500 2500 3500 2000 3000 4000
Figure 6-46 Negative Climb Rate (NCR) Alert Criteria
FIVE-HUNDRED AURAL ALERT
The purpose of the aural alert message “Five-hundred” is to provide an advisory alert to the pilot that the
aircraft is 500 feet above terrain. When the aircraft descends within 500 feet of terrain, the aural message
“five-hundred” is generated. There are no display annunciations or pop-up alerts that accompany the aural
message.
TAWS NOT AVAILABLE ALERT
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.
TAWS FAILURE ALERT
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 a ‘TAWS FAIL’ annunciation.