External Taws Inhibit Control; Taws Manual Test - Garmin GDL 69A Pilot's Manual Addendum

Part Three: Section 2
TAWS Operation
TERRAIN configured units will restore the "inhibit
state" at startup to the last pilot-selected setting. TAWS
configured units will always start up with TAWS alerts
uninhibited.
Inhibiting Terrain
To inhibit PDA and FLTA alerts:
1. Select the TAWS Page and press MENU.
"Inhibit Terrain?" is selected by default.
Press ENT. The PDA/FLTA alerts are inhibited.
2.
The
the terrain annunciator field whenever terrain
is inhibited.
To enable PDA and FLTA alerts:
Select the TAWS Page and press MENU.
1.
"Enable Terrain?" is selected by default.
2. Press ENT. The PDA/FLTA alerts are functional
again.
34
annunciation is displayed in
190-00356-30 Rev C

External TAWS Inhibit Control

An optional installation is allowed for providing
an external TAWS Inhibit switch. Pressing the external
TAWS Inhibit switch toggles the TAWS inhibit on and
off in the same manner as using the Page Menu selec-
tion.

TAWS Manual Test

Garmin TAWS provides a manual test capability
which verifies the proper operation of the aural and
visual annunciations of the system prior to a flight.
"Test Terrain" selection
To manually test the TAWS system:
1. Select the TAWS Page and press MENU.
2. Select the "Test Terrain?" option.
Press ENT to confirm the selection.
3.
An aural message is played giving the test results:
• "TAWS System Test, OK" if the system passes the
test
• "TAWS System Failure" if the system fail the test
NOTE: TAWS System Testing is disabled when
ground speed exceeds 30 knots so as not to
impede TAWS alerting.