190-01263-01 Rev. A
Garmin G2000 Pilot’s Guide for the Cessna T240
423
Hazard avoidance
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ALTITUDE VOICE CALLOUT (VCO)
TAWS provides an aural advisory alert as the aircraft descends through 500 feet above the terrain (if greater
than 5 nm from the nearest airport) or 500 feet above the nearest runway threshold elevation (if less than 5
nm from the nearest airport). Upon descent to this altitude, TAWS issues a “Five-hundred” voice alert.
There are no display annunciations or pop-up alerts that accompany the aural message(s). The VCO alert
cannot be inhibited.
SYSTEM STATUS
During power-up, TAWS conducts an automatic system test. The test can also be manually initiated. The
system issues a voice alerts when the test is finished. TAWS System Testing is disabled when ground speed
exceeds 30 knots. TAWS terrain alerts will not be issued while a test is in progress.
Alert Type
PFD/TAWS Pane
Annunciation
TAWS Pane
Center Banner
Annunciation
Voice Alert
TAWS System Fail
TAWS FAIL
“TAWS System Failure”
System Test in progress
TAWS TEST
None
System Test pass None None “TAWS System Test OK”
Table 6-19 TAWS System Test Status Annunciations
Manually testing the TAWS System:
1) From Home, touch TAWS > TAWS Settings.
2) Touch the Test TAWS Button.
Or:
1)
From Home, touch Map > Map Settings.
2) Touch the Relative Terrain Settings Button.
3) Touch the Test TAWS Button.
TAWS ABNORMAL OPERATIONS
TAWS continually monitors several system-critical items such as database validity and GPS status.
If no neither the PFD nor MFD contains Terrain and Obstacle databases (or the databases are invalid), 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 Pane. The voice alert “TAWS Not
Available” is also generated if airborne. . When the system receives sufficient GPS signal and the aircraft is
within the database coverage area, the system issues a “TAWS Available” voice message.
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