Garmin GDL 69A Pilot's Manual Addendum

Also see for GDL 69: Pilot's guide addendum Activation Instructions Pilot's guide Activation Instructions Pilot's guide addendum

Contents

Garmin GDL 69A Pilot's Manual Addendum Manual pdf 38 page image

34Part Three: Section 2TAWS OperationTERRAIN configured units will restore the “inhibitstate” at startup to the last pilot-selected setting. TAWSconfigured units will always start up with TAWS alertsuninhibited.Inhibiting TerrainTo inhibit PDA and FLTA alerts:1. Select the TAWS Page and press MENU.“Inhibit Terrain?” is selected by default.2. Press ENT. The PDA/FLTA alerts are inhibited.The annunciation is displayed inthe terrain annunciator field whenever terrainis inhibited.To enable PDA and FLTA alerts:1. Select the TAWS Page and press MENU.“Enable Terrain?” is selected by default.2. Press ENT. The PDA/FLTA alerts are functionalagain.External TAWS Inhibit ControlAn optional installation is allowed for providingan external TAWS Inhibit switch. Pressing the externalTAWS Inhibit switch toggles the TAWS inhibit on andoff in the same manner as using the Page Menu selec-tion.TAWS Manual TestGarmin TAWS provides a manual test capabilitywhich verifies the proper operation of the aural andvisual annunciations of the system prior to a flight.“Test Terrain” selectionTo manually test the TAWS system:1. Select the TAWS Page and press MENU.2. Select the “Test Terrain?” option.3. Press ENT to confirm the selection.An aural message is played giving the test results:• “TAWS System Test, OK” if the system passes thetest• “TAWS System Failure” if the system fail the testNOTE: TAWS System Testing is disabled whenground speed exceeds 30 knots so as not toimpede TAWS alerting.190-00356-30 Rev C