Pixhawk 2.1 suddenly fall Loiter

@alberto.munizaga wrote:

Hi, I have this configuration:
PixHawk 2.1 , FW 3.5.5, HERE GPS
Hexacopter
380kv Arris Motors, 15x55 props
30Amps ESC BLHeli -S
6S 20Apm battery
DragonLink Remote

So, i was giving a try to my drone, I did 2 flights after without problem. But this time was different. It was in loiter mode and no problem until suddenly seems to be all the mortors stop working, all at the same time, and as you can imagine, it crashs on the floor.

I tought may be the Pix was rebooted, or some hardware was burn out, so I went to the the logs, and as I can see, all the parameters are good, the system try to go up, but at the same time I can see the current usage stops and the voltage go up, like when you stops the engine.

The battery was OK on the flight, I had a volt tester attached the the battery to 3.6V per cell, and I never get the sound alarm.

image.png1327x505 41.4 KB

Here is the log attached, if some one can give it a look, may be ther is something Im not seeing. After the crash I got some GPS glitch, but I think that was for the hard hit on the floor, so dont pay to much attention on that on the log.

thanks!pixLoiterCrash.zip (630.6 KB)

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