Silencing repeated terrain warnings

I have twice now flown into private mountainous airstrips and been bombarded with 'terrain, pull up' warnings as I'm approaching the airport and when on final.  These airstrips are not in the database so the navigator has no idea I'm trying to land on an actual runway and thinks I'm trying to fly the plane into the ground with mountains all around me.   I block out the warnings but they are very distracting during challenging approaches.  I can hit 'clear' on my IFD440 but it comes right back.  Is there an easy way to silence these repeated aural warnings or do I just have to remember to turn them off in the settings prior to launching to one of these airstrips in the future?

See page 3-50 of the IFD500 series pilot guide (2-43 in the 400 series PG).  It describes how to designate a user waypoint as an airport.  It's a little hokey, but that feature was included specifically to address this situation.  Put that waypoint in your flight plan and the warnings should go away.

Gring wrote: Steve, I am working on a panel update and have a Mid Continent MD41 TAWS annunciation with an inhibit button.  Looking at the install manual, it looks like there are outputs for the Terrain Alert and Pull UP annunciation as well as an input to inhibit TAWS. Can you confirm that these are indeed operational in the latest software?

Edited by brou0040 - 03 Mar 2020 at 9:03pm

AviSteve wrote: See page 3-50 of the IFD500 series pilot guide (2-43 in the 400 series PG).  It describes how to designate a user waypoint as an airport.  It's a little hokey, but that feature was included specifically to address this situation.  Put that waypoint in your flight plan and the warnings should go away.

Great, thanks. I thought so based on the pinout. When I was working with the precertified software, it wasn't yet operational and couldn't remember hearing the status.