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Mavic air fell from the sky
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3869 67 2018-3-7
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fans123c8b55
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I unboxed and tested a brand new air, I was on my 4th flight with a brand new battery with 1 charge. First flight in sport mode. The RC suddenly disconnected from the aircraft. The video recording stopped on the sd card at the same time. I did locate the mavic, 165 feet from the last known location and it was powered on when I found it but did have a broken gimbal, landing gear and cracked motor housing.


http://www.phantomhelp.com/logviewer/LOP6IHXSGZJWG6IJ2W6A/

2018-3-7
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Simmo1
First Officer
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I cant tell if at 242.8 seconds you let go of the elevator and gave full down throttle, or was that the disconnect? Then some very weird elevator movements low to the ground in auto land.
2018-3-7
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fans123c8b55
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Simmo1 Posted at 2018-3-7 19:16
I cant tell if at 242.8 seconds you let go of the elevator and gave full down throttle, or was that the disconnect? Then some very weird elevator movements low to the ground in auto land.

The disconnect and crash are at the very end of the log. I'm not sure where you're seeing auto land, it was never landing.
2018-3-7
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DJI Mindy
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We are so sorry to read on the crash accident, please contact our support to start a ticket and send in the drone for data analysis, the corresponding resolution will be provided according to the analysis result, good luck to you.
2018-3-7
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fans123c8b55
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DJI Mindy Posted at 2018-3-7 19:30
We are so sorry to read on the crash accident, please contact our support to start a ticket and send in the drone for data analysis, the corresponding resolution will be provided according to the analysis result, good luck to you.

It was received by DJI a week ago. I'm still waiting for a response from data analysis. This drone was hours old and on its 4th flight.
2018-3-7
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Simmo1
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fans123c8b55 Posted at 2018-3-7 19:23
The disconnect and crash are at the very end of the log. I'm not sure where you're seeing auto land, it was never landing.

Man I am so sorry, CSView opened up a different log!! I'll look at yours now!
2018-3-7
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fans123c8b55
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Simmo1 Posted at 2018-3-7 19:36
Man I am so sorry, CSView opened up a different log!! I'll look at yours now!

Thanks for taking a look.
2018-3-7
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Simmo1
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Yeah, strange one. There is a massive Yaw anomoly at the end, then what looks like a disconnect. Its good that DJI have the bird so they can see what the AC was doing. I hope you get a new one Bud, sorry I couldn't help.
2018-3-7
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Skyhighdronephoto
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Simmo1 Posted at 2018-3-7 19:52
Yeah, strange one. There is a massive Yaw anomoly at the end, then what looks like a disconnect. Its good that DJI have the bird so they can see what the AC was doing. I hope you get a new one Bud, sorry I couldn't help.

I agree and would like to know what went wrong. I have other DJI drones and this is the first issue we've had. Thanks again for your help.
2018-3-7
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Andreas78
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Greece
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I had a similar problem, I was flying my air at 30 meters height and 350 meters away from me and suddenly without any other warning my a.c. disconnected and I was waiting for my aircraft to come back... it never come back so I was like crazyman and I had to go find it.. it seems that it had fall down.. camera was hurt and some scratches.. I have sent it to dji  and I am waiting..
2018-3-7
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Andreas78
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And when I started the flight all was good.. homepoint recorded sensors on.. but it never came back to me.. thanks God I wasn't above sea like 80% of me flights.....
2018-3-8
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Skyhighdronephoto
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Andreas78 Posted at 2018-3-7 23:59
I had a similar problem, I was flying my air at 30 meters height and 350 meters away from me and suddenly without any other warning my a.c. disconnected and I was waiting for my aircraft to come back... it never come back so I was like crazyman and I had to go find it.. it seems that it had fall down.. camera was hurt and some scratches.. I have sent it to dji  and I am waiting..

How long has your mavic been at dji for assessment? I have a second mavic air and it's grounded (still returnable) until they figure out what happened here.
2018-3-8
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AndrewGR
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Skyhighdronephoto Posted at 2018-3-8 05:28
How long has your mavic been at dji for assessment? I have a second mavic air and it's grounded (still returnable) until they figure out what happened here.

I have it to authorised store of doing that I purchased it at 27/2. I phoned at it today after I saw your message and they told me that they haven't receive any news about my drone.. i should have news tomorrow or next week they said.
2018-3-8
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AndrewGR
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AndrewGR Posted at 2018-3-8 09:10
I have it to authorised store of doing that I purchased it at 27/2. I phoned at it today after I saw your message and they told me that they haven't receive any news about my drone.. i should have news tomorrow or next week they said.

I have returned to the authorised store of dji that I purchased it at 27/2.. the accident had happened 24/2.. I phoned at them today after I saw your message and they told me that they haven't receive any news about my drone.. i should have news tomorrow or next week they said.

Sorry for having 2 posts but I post the other one without checking it out first .
2018-3-8
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Mavic Ace
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Was it windy that day?
2018-3-8
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Skyhighdronephoto
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A little breeze but not windy and No wind warnings this day. The bird just stopped moving forward and fell out of the sky.
2018-3-8
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Mavic Ace
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That is very odd. I was thinking that if it was in sport mode and a gust of wind caused it to tilt 90 degrees the auto shutoff may have triggered. But if the wind wasn’t blowing very hard that isn’t likely.
2018-3-8
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Skyhighdronephoto
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Thanks for taking a look.
2018-3-8
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Skyhighdronephoto
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2018-3-9
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cspain
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Skyhighdronephoto Posted at 2018-3-9 17:32
https://youtu.be/hm0AKdxxCYs

That was a weird edit, didn't it film the actual fall?
2018-3-9
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Skyhighdronephoto
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cspain Posted at 2018-3-9 20:16
That was a weird edit, didn't it film the actual fall?

There was no editing done except for the audio and trimming the beginning. That is from the cache on the device. The app automatically added the last picture that was taken with find my drone to the end of the cached video. Also, the glitches/frame drops seen at the end of the cache video were not seen in the SD card video. My theory is that it did a reboot 200 feet in the sky, stopping the props and recording. Still waiting to hear from DJI......
2018-3-9
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Mavic Ace
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I like that you added music to your crash video.
2018-3-9
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Skyhighdronephoto
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Thank you.
2018-3-9
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DJI Mindy
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fans123c8b55 Posted at 2018-3-7 19:32
It was received by DJI a week ago. I'm still waiting for a response from data analysis. This drone was hours old and on its 4th flight.

OK, if you need assistance during this process, please post the case number here, we will help to check.
2018-3-10
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Skyhighdronephoto
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Sent you a PM with the case #


Thank you
2018-3-10
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cspain
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Mavic Ace Posted at 2018-3-9 21:24
I like that you added music to your crash video.

Well, it's his last video for a while, gotta make it count
2018-3-10
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burnham187
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Sorry to hear about the crash.  Hope it ends well.
2018-3-10
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Wyke
Second Officer
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Weird. Can’t have been a power off because it took that picture on the ground.
2018-3-10
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Skyhighdronephoto
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Wyke Posted at 2018-3-10 08:31
Weird. Can’t have been a power off because it took that picture on the ground.

Not a complete power off but maybe a reboot? Makes sense to me, it reboots and kills the props and recording but remains powered on. Or lost power for a moment?
2018-3-10
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Skyhighdronephoto
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burnham187 Posted at 2018-3-10 08:10
Sorry to hear about the crash.  Hope it ends well.

Thank you! I'll update the post as soon as I hear from DJI.
2018-3-10
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Wyke
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Skyhighdronephoto Posted at 2018-3-10 09:52
Not a complete power off but maybe a reboot? Makes sense to me, it reboots and kills the props and recording but remains powered on. Or lost power for a moment?

If it reboots how would it start recording? The default is off, as many have found out when taking off and forgetting to press record.
2018-3-10
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Skyhighdronephoto
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Wyke Posted at 2018-3-10 10:22
If it reboots how would it start recording? The default is off, as many have found out when taking off and forgetting to press record.

It never started recording on its own. When I was within about 30 feet of the crash site I finally regained signal and took a picture with find my drone. The app was recording the entire time and added that photo to the end of the recording it also recorded my audio walking over to the crash site.
2018-3-10
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Wyke
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That’s what I don’t understand. If it was recording all the time, where’s the rest of it?
2018-3-10
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burnham187
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Wyke Posted at 2018-3-10 12:39
That’s what I don’t understand. If it was recording all the time, where’s the rest of it?

Its as if the drone reset mid-air and happen to turn on at last second maybe.  But then how would it of just started recording again?  Very weird.
2018-3-10
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B1houdini
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Skyhighdronephoto Posted at 2018-3-9 20:40
There was no editing done except for the audio and trimming the beginning. That is from the cache on the device. The app automatically added the last picture that was taken with find my drone to the end of the cached video. Also, the glitches/frame drops seen at the end of the cache video were not seen in the SD card video. My theory is that it did a reboot 200 feet in the sky, stopping the props and recording. Still waiting to hear from DJI......

Really was enjoying the video .Up to where it dropped from the sky.

Had an episode  where I lost contact and the Mavic did a RTH and stopped recording from that point on. Thought it was weird! Hope it is not programed to do that to hide problems from us??
2018-3-10
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Skyhighdronephoto
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Wyke Posted at 2018-3-10 12:39
That’s what I don’t understand. If it was recording all the time, where’s the rest of it?

When it fell from the sky from 200 feet the video recording STOPPED, the app continued to record audio and added the photo to the end of the video. It was news to me as well. The 4k video on the card just stopped when it dropped.
2018-3-10
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Skyhighdronephoto
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burnham187 Posted at 2018-3-10 12:42
Its as if the drone reset mid-air and happen to turn on at last second maybe.  But then how would it of just started recording again?  Very weird.

It didn't start recording again. The app added the find my drone photo to end of the video recoding on my devices cache.
2018-3-10
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Bulldog
First Officer
Flight distance : 816158 ft
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Dji strikes Again
2018-3-10
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Wyke
Second Officer
Flight distance : 33166 ft
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Frustratingly weird
2018-3-10
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Skyhighdronephoto
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Wyke Posted at 2018-3-10 14:19
Frustratingly weird

Very frustrating watching $1000 fall from the sky only hours old and on its 4th flight!
2018-3-10
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