# Hello, please help diagnose crash

**URL:** <https://discuss.px4.io/t/hello-please-help-diagnose-crash/11925>\
**Category:** Flight Testing & Log Analysis\
**Created:** [July 14, 2019, 8:14am UTC](https://discuss.px4.io/t/hello-please-help-diagnose-crash/11925 "2019-07-14T08:14:14Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![simosilva](https://discuss.px4.io/user_avatar/discuss.px4.io/simosilva/32/4274_2.png) [@simosilva](https://discuss.px4.io/u/simosilva)\
**Post date:** [July 14, 2019, 10:38pm UTC](https://discuss.px4.io/t/hello-please-help-diagnose-crash/11925/2 "2019-07-14T22:38:30Z")

</div>

Hi, your log is not so clear and im not a proper expert, but the roll and pitch controls did not responded to the setpoint starting from around 40 sec, then in the accelerometer graph the first acceleration in x and y seems to indicate the beginning of the fall, around 40.4s and the real crash with the ground at around 41s am i right?

Look here at my log:  
[https://logs.px4.io/plot\_app?log=731d240d-e17e-44f3-af9a-df2f43f89fd7](https://logs.px4.io/plot_app?log=731d240d-e17e-44f3-af9a-df2f43f89fd7)  
seem quite the same thing, but i have also a power module capable of reading Amps on the battery and Voltages too, and im my case you can see a big Amps drop.  
Maybe could be also your case, system not responding correctly due to Power issue, but you cannot see it without a current and voltage sensor.

If you’re interested in my case, consider checking also my topic:

> [@PX4 crash log](https://discuss.px4.io/t/px4-crash-log/11833):
>
> Hi everyone. I had a problem with my custom built after the first mission flight. Pixracer r15, [mro GPS](https://store.mrobotics.io/product-p/mro-ugps-samm8q-01.htm), [mro acsp5 power module](https://store.mrobotics.io/product-p/auav-acsp5-mr.htm), 4in1 esc and motors in x configuration (generic quad). I’m trying to figure out what’s wrong with the flight, here the log file link: [https://logs.px4.io/plot\_app?log=731d240d-e17e-44f3-af9a-df2f43f89fd7](https://logs.px4.io/plot_app?log=731d240d-e17e-44f3-af9a-df2f43f89fd7) Also the 3d visualization is good to understand the drone behaviour easily… I need some expert opinion, the problem appear at 2:14, just before trying to take th…

Hope it could help you 🖖

---

_[View the full topic](https://discuss.px4.io/t/hello-please-help-diagnose-crash/11925)._