any thoughts on this message?

[Jim Peace]

running a GTN 650 with the Garmin 345.  Position displays on the GTN with a transponder error message on there as well.

I flew the plane last week and it worked great.  No indications of an issue pending....I was not flying this trip but my friend said he recycled everything and no popped breakers...

Thoughts?

This 345 does not have the internal GPS...it gets it from the GTN

 

 

 

[N201MKTurbo]

http://www.vansairforce.com/community/showthread.php?t=169989

 

[Jim Peace]

1 hour ago, N201MKTurbo said:

http://www.vansairforce.com/community/showthread.php?t=169989

 

I do not see how that could be my issue...all has been well for almost 150 hours....nobody has messed with configurations...

Thank you

[kortopates]

Could be as simple as the GTX-345 came up before the GTN had a valid position due to blockage of the sky from perhaps a hangar. You’ll get the same message if you boot up in your hangar with out a clear view of the sky.


Sent from my iPhone using Tapatalk

[Jim Peace]

9 minutes ago, kortopates said:

Could be as simple as the GTX-345 came up before the GTN had a valid position due to blockage of the sky from perhaps a hangar. You’ll get the same message if you boot up in your hangar with out a clear view of the sky.


Sent from my iPhone using Tapatalk

everything was cycled many times over at the run up pad....and it has never happened before in many many legs of flying.......

[kortopates]

10 minutes ago, Jim Peace said:

everything was cycled many times over at the run up pad....and it has never happened before in many many legs of flying.......

Unfortunately, its only a general error message saying it doesn't have all the necessary data to create the ES data packet. A Garmin installer can run the GTX3X5 Install tool to quickly diagnose what is the real fault. But most commonly its the GPS position source data, but not always.  If you just had the recent firmware update installed it could be a bad install of the firmware; but many possibilities. 

[Baker Avionics]

4 hours ago, Jim Peace said:

running a GTN 650 with the Garmin 345.  Position displays on the GTN with a transponder error message on there as well.

I flew the plane last week and it worked great.  No indications of an issue pending....I was not flying this trip but my friend said he recycled everything and no popped breakers...

Thoughts?

This 345 does not have the internal GPS...it gets it from the GTN

 

 

 

What it is, the GTX345 is not getting a GPS signal and that is what it is tel;ling you.  Have you done an update to the GTN lately?  Maybe it was just a glitch.  Tell me more please.

[Jim Peace]

1 hour ago, Baker Avionics said:

What it is, the GTX345 is not getting a GPS signal and that is what it is tel;ling you.  Have you done an update to the GTN lately?  Maybe it was just a glitch.  Tell me more please.

An update to the GTN was done about 2 months and many many legs ago....I am going to go to the hangar tomorrow and pull it out and see if it duplicates itself.....

[Jim Peace]

This is what I get now:

GTN position is accurate but unable to turn transponder on from the GTN

[EricJ]

Sounds like the link between the GPS and the transponder has failed.

 

[Awful_Charlie]

Be prepared

[takair]

Jim,  It could be as simple as what it says, a transponder failure.  Very possible a chip failure.  Even Garmin is not immune from random failures....

[Jim Peace]

Garmin warrantee:  2 years or 800 flight hours from the date of purchase for new TSO remote-mount and TSO panel-mount products;

hopefully they honor this when the time comes.....I think I am at 18 months now

[jaylw314]

I don't know anything about the GTX 345, but it's curious it would fail to standby mode due to simply the loss of GPS connectivity.  I would imagine it would fail to regular mode S if it had no valid position source, no?

[Baker Avionics]

On 8/27/2019 at 8:41 AM, Jim Peace said:

Garmin warrantee:  2 years or 800 flight hours from the date of purchase for new TSO remote-mount and TSO panel-mount products;

hopefully they honor this when the time comes.....I think I am at 18 months now

Pull the units out and check for bent pins.  Also, if we can set up a time when you are at your aircraft, we can go through some of the TS steps.  Also, if you are in the area....haha.....come by for a gander.  I do have a place in GA I can send you to if need be.