Lost my drone here is the flight log.

[Deleted member 106156]

Flying a little over 5000 feet away and lost connection. Had a good signal, just boop and then nothing. I flew into the wind to get to the destination and I believe it should have take the drone less than 3 minutes to get back home. It was at 64% when I lost connection I think. On my previous flight earliar that day, when I landed I had 44% left.
Thanks guys!

Log- DJIFlightRecord_2019-08-31_[16-15-52].txt

 

[Meta4]

Flying a little over 5000 feet away and lost connection. Had a good signal, just boop and then nothing. I flew into the wind to get to the destination and I believe it should have take the drone less than 3 minutes to get back home. It was at 64% when I lost connection I think. On my previous flight earliar that day, when I landed I had 44% left.

Your flight data looks like this: DJI Flight Log Viewer - PhantomHelp.com
At the end of the flight data, the drone is in stable flight making 30 mph with full right stick in Sport Mode.
There are no sudden changes in the pitch, roll and yaw data that would indicate a collision or flight problem.
You had lots of battery and no obstacles on the RTH path.
Your Loss of Signal action was set on the default (RTH).
That leaves a sudden loss of power as the most likely cause of loss of signal.

 

[InvisibleName]

Which drone was it?

 

[msinger]

Which drone was it?

Mavic Air

 

[Deleted member 106156]

Thanks guys. I contacted support so hopefully they can offer a replacement. Additionally me and 2 other people spent probably 2-3 hours searching its last known and didn't see it, but there was a lot of tall grass.

 

[Meta4]

Thanks guys. I contacted support so hopefully they can offer a replacement.

For a replacement, DJI usually want to examine the drone to identify the issue.
No drone makes that a problem.

 

[Deleted member 106156]

Could the US Navy testing affected it?

 

[Meta4]

Could the US Navy testing affected it?

Was the navy testing something that completely blocked all communication to/from the drone?
If you are thinking of GPS interruptions, we'd still have full communication with the drone rather than the data just stopping.

 

[Deleted member 106156]

GPS testing to degrade signal

GPS aerial navigation could become unreliable or unavailable again over the southeastern United States and adjacent coastal waters during a U.S. Navy exercise that will involve GPS interference testing Aug. 30 and Sept. 5.

www.aopa.org

 

[msinger]

Per that article:

"GPS aerial navigation could become unreliable or unavailable again over the southeastern United States and adjacent coastal waters during a U.S. Navy exercise that will involve GPS interference testing this Friday, Aug. 30, and next Thursday, Sept. 5."

Your flight was on August 31.

 

[Deleted member 106156]

Ah, I thought it was thru. Never mind then.

 

[Meta4]

GPS testing to degrade signal

GPS aerial navigation could become unreliable or unavailable again over the southeastern United States and adjacent coastal waters during a U.S. Navy exercise that will involve GPS interference testing Aug. 30 and Sept. 5.

www.aopa.org

At a distance of ~540 miles from the GPS testing, he would have had to be flying at >30000 feet to see any effect.
And GPS interruption would not cause the drone to fall from the sky or have any effect on the drone's telemetry.

 

[sar104]

There are no precursor indications of any problems, so it does look like a sudden loss of power or FC failure. If that's what happened then it's descent track, based on position, wind field and aircraft velocity, should look something like this:

 

[worldtraveller]

Have a look at my thread about a very similar disconnection and loss, and also some of the other threads about the same issue. Makes me think that there is a software or firmware issue somewhere.

 

[InvisibleName]

Have a look at my thread about a very similar disconnection and loss, and also some of the other threads about the same issue. Makes me think that there is a software or firmware issue somewhere.

or a battery coming lose, or a battery cell(s) failure..........

SAR104, are there any indications in the logs of battery issues?

 

[sar104]

or a battery coming lose, or a battery cell(s) failure..........

SAR104, are there any indications in the logs of battery issues?

Not in the txt log. The DAT file might show something.

 

[krodgerson]

So you've flown over buildings, people, roads and beyond line of sight!! Why?

 

[bliksem]

Seagull or other bird interference?
Sea birds love drones....

 

[Meta4]

Seagull or other bird interference?
Sea birds love drones....

It would be unlikely that a collision with a bird would result in a sudden total power loss.
You would expect to see evidence of it in the recorded data.

 

[bliksem]

Bird tips drone.... drone hits ground... battery ejects... sudden power loss?