Garmin Flight Deck 100 Manual De Usuario

®

190-00728-04 Rev. A

390

During power-up, TAWS-B conducts a self-test of its aural and visual annunciations. The system test can also

be manually initiated. The system issues an aural alert when the test has completed. TAWS-B System Testing
is disabled when ground speed exceeds 30 knots.

System Test in Progress

None

System Test Pass

None

None

“TAWS System Test OK”

TAWS-B System Test Fail

“TAWS System Failure”

Select the TAWS-B Page.

Press the MENU Key (Figure 6-86).

Select ‘Test TAWS System’ and press the ENT Key to confirm the selection.

TAWS-B 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-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 annunciation 
‘TAWS N/A’ is generated in the annunciation window and on the TAWS-B Page. The aural message “TAWS Not 
Available” is generated. When sufficent GPS signal is received and the aircraft is within the terrain database
coverage area, the aural message “TAWS Available” is generated.