Limited control then dropped from sky
943 10 2021-12-6
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TroyFGrose
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United States
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Hey I tried doing a surveying flight with 2D photo and the drone just wouldn't respond to the RC besides yaw inputs then I tried to take control of the drone with the sticks and it just dropped.
I've attached the flight files for you to tell me if its operator error or if there was another issue in the google drive below.

https://drive.google.com/drive/folders/1wrPkx8pLAgy57s4_PL_CcF5bPmFvp3Xn?usp=sharing

Update: used Battery was used in these flights
2021-12-6
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Labroides
Core User of DJI
Flight distance : 9991457 ft
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Australia
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If you can post the relevant text file, that would be a lot more helpful.
What app were you using to fly the mission?
2021-12-6
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DJI Stephen
DJI team
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Hello there TroyFGrose. I am sorry to read and to know what happened to your DJI Drone. Since this unfortunate incident happened and you have lost the said drone. I would recommend for you to contact our DJI Support Team at https://www.dji.com/support?site=brandsite&from=nav for further assistance. We have a team that will do there best to help you and give out the best resolution for the said issue. Again, I am sorry for your loss and thank you.
2021-12-6
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Guille_Meinero
Second Officer

Argentina
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maybe you perform an urgent stop mid-flight ?, is a combination of both stick
2021-12-6
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Guille_Meinero
Second Officer

Argentina
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https://app.airdata.com/share/nwftuI
2021-12-6
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TroyFGrose
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United States
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Guille_Meinero Posted at 12-6 19:10
maybe you perform an urgent stop mid-flight ?, is a combination of both stick

Would this cause the motors to stop completely?I didnt attempt it but I tried to raise the elavation but all i could do was move the yaw i looked in the data file and it didnt see any of my throttle inputs.
2021-12-7
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Labroides
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TroyFGrose Posted at 12-7 03:40
Would this cause the motors to stop completely?I didnt attempt it but I tried to raise the elavation but all i could do was move the yaw i looked in the data file and it didnt see any of my throttle inputs.

Without flight data, you're not going to get any meaningful answers, just guesses that are most likely to be wrong.
2021-12-7
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Guille_Meinero
Second Officer

Argentina
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TroyFGrose Posted at 12-7 03:40
Would this cause the motors to stop completely?I didnt attempt it but I tried to raise the elavation but all i could do was move the yaw i looked in the data file and it didnt see any of my throttle inputs.

"Would this cause the motors to stop completely?" Yes. page 69 P4RTK manual.  I have disabled it cause sometimes in panic situation you just dont know exactly what you did.

2021-12-7
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Guille_Meinero
Second Officer

Argentina
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Labroides Posted at 12-7 06:54
Without flight data, you're not going to get any meaningful answers, just guesses that are most likely to be wrong.

agree... you can try this https://datfile.net/CsvView/CsvView.4.2.5.zip

also i´ve uploaded to https://app.airdata.com/share/nwftuI

but you have shared a lot of files, try to share only the one when the aircraft felt
2021-12-7
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patiam
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Flight distance : 1118740 ft
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What @Guille_Meinero said. I took one look at the pile of files originally posted and took a pass on trying to help.
2021-12-7
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Labroides
Core User of DJI
Flight distance : 9991457 ft
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Australia
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If this is the flight being asked about, it's an odd one.
The flight starts by climbing to 250 ft directly above the launch point, hovering there for 16 seconds before RTH was initiated.
After 9.5 seconds it started to slowly autoland, descended to the ground and was launched again.
It climbed to 250 ft again and hovered for 31 seconds.

At 141.8 seconds the drone begins to rotate clockwise.
There is no indication of any joystick input to cause this, so it's likely that it was part of the automated mission programming?
The recorded data doesn't show any evidence of joystick input.

The data ends at 144 seconds with the drone still 250 ft up and slowly rotating in a stable hover with 75% battery.

There are no obvious indications in the data of any problem that could cause a fall from the sky incident.
2021-12-7
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