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I lost Phantom!
1876 22 2018-8-22
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HELLODJI
lvl.1

South Korea
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Hi, today I've flew phantom4 pro and it was disappeared with last signal after 40 seconds from the start. It should have flew more distance to the destination but it sent its last signal at the very begininng and it has lost and it flew away without signal anymore. It should have returned home if the signal can be lost. I've tried to find it around the lost signal position but it was nowhere. There was no obstacle on the flight. It is misterious. I need you help. I look forward to hearing from you.


2018-8-22
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msinger
Captain
Flight distance : 228255 ft
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United States
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Check out your TXT flight log to see if it explains what happened. You can upload and view it online here. If you'd like other people to review and comment on your flight log, then please post a link back here after you upload it.
2018-8-22
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Drone-Mike
First Officer

United Kingdom
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LOL              
2018-8-22
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DJI Paladin
Administrator
Flight distance : 318 ft

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We are very sorry to read about the flyaway incident. I would recommend you to contact our support team to start a ticket: (https://www.dji.com/support?site=brandsite&from=nav). We have the professional data analysis team who would do their best to find out the reason of the flyaway incident and then the corresponding resolution would be provided. Thanks for your support.
2018-8-22
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ALABAMA
Captain
Flight distance : 10442687 ft
United States
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Follow msinger's advice in post #2.
2018-8-22
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HELLODJI
lvl.1

South Korea
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msinger Posted at 2018-8-22 06:06
Check out your TXT flight log to see if it explains what happened. You can upload and view it online here. If you'd like other people to review and comment on your flight log, then please post a link back here after you upload it.

http://www.phantomhelp.com/LogViewer/CY379RBT7AXX8HWKT7KC/

I uploaded the log and hope you can review it.
2018-8-24
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Labroides
Captain
Flight distance : 9991457 ft
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Australia
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HELLODJI Posted at 2018-8-24 05:56
http://www.phantomhelp.com/LogViewer/CY379RBT7AXX8HWKT7KC/

I uploaded the log and hope you can review it.

Your flight data shows that you were flying a waypoint mission and the Phantom lost signal when it was 280 metres away and 50 metres up.  
It will have continued the mission but without seeing the mission, it's not possible to tell where it went to or what happened after it want out of range.
2018-8-24
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msinger
Captain
Flight distance : 228255 ft
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United States
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Google Earth doesn't have a great view of that location, but it looks like there were some structures in the area that could have been higher than the Phantom's altitude (164 feet). For example:



Maybe try following the intended flight path to see if it crashed into something along the way.
2018-8-24
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Phantom Pilot
Second Officer
Flight distance : 281371 ft
Germany
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msinger Posted at 2018-8-24 13:39
Google Earth doesn't have a great view of that location, but it looks like there were some structures in the area that could have been higher than the Phantom's altitude (164 feet). For example:

[view_image]

Or it might be shot down bei someone on the Ground
2018-8-24
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Hellsgate
Captain
Flight distance : 1991555 ft
Australia
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Phantom Pilot Posted at 2018-8-24 15:09
Or it might be shot down bei someone on the Ground

Very unlikely
2018-8-24
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HELLODJI
lvl.1

South Korea
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msinger Posted at 2018-8-24 13:39
Google Earth doesn't have a great view of that location, but it looks like there were some structures in the area that could have been higher than the Phantom's altitude (164 feet). For example:

[view_image]

There is no structure on the way more than 50m (~164feet). I've tried to find it but we couldn't find the drone and it seems like that it flew away suddenly.
2018-8-26
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HELLODJI
lvl.1

South Korea
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Labroides Posted at 2018-8-24 06:42
Your flight data shows that you were flying a waypoint mission and the Phantom lost signal when it was 280 metres away and 50 metres up.  
It will have continued the mission but without seeing the mission, it's not possible to tell where it went to or what happened after it want out of range.

The mission required more distance to fly but it was disappeared very early on the exact way for the destination and it only flied 250 metres..  
2018-8-26
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msinger
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HELLODJI Posted at 2018-8-26 01:51
There is no structure on the way more than 50m (~164feet). I've tried to find it but we couldn't find the drone and it seems like that it flew away suddenly.

Phantoms don't just disappear out of thin air. One of the following likely occurred:

- The Phantom crashed into an obstacle along the waypoint route
- The Phantom reached the critically low battery level while flying the route and auto landed at its current location
- The battery disconnected or shut off mid-flight and the Phantom dropped out of the sky
- The Phantom lost a prop and dropped out of the sky

Try walking the entire waypoint route by foot and look for it on the ground or in any obstacles it could have crashed into (like on top of a building/structure).
2018-8-26
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HELLODJI
lvl.1

South Korea
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msinger Posted at 2018-8-26 07:16
Phantoms don't just disappear out of thin air. One of the following likely occurred:

- The Phantom crashed into an obstacle along the waypoint route

We've tried to walk and there was no higher structure than the flying altitude and the battery was always more than 80%. If it is dropped, we should've been able to find it but it was not found yet.
2018-8-26
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lakeglenmiss
New
Flight distance : 40069 ft
United States
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Good luck. We have had two fly away, far far away
2018-8-26
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RedHotPoker
Captain
Flight distance : 165105 ft
Canada
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Phantom Pilot Posted at 2018-8-24 15:09
Or it might be shot down bei someone on the Ground

Grab hold of something sturdy...


RedHotPoker
2018-8-26
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RedHotPoker
Captain
Flight distance : 165105 ft
Canada
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Hahaha, yeah...

No UFO either... grin


RedHotPoker
2018-8-26
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RedHotPoker
Captain
Flight distance : 165105 ft
Canada
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HELLODJI Posted at 2018-8-26 08:14
We've tried to walk and there was no higher structure than the flying altitude and the battery was always more than 80%. If it is dropped, we should've been able to find it but it was not found yet.

Please continue to search. Walking  much farther out than expected...


Use another drone to search for it...


RedHotPoker
2018-8-26
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Labroides
Captain
Flight distance : 9991457 ft
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Australia
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lakeglenmiss Posted at 2018-8-26 11:01
Good luck. We have had two fly away, far far away

No you haven't.
You just don't know the reasons you lost two Phantoms.
Did anyone look at the flight data to work out what happened to them?
2018-8-26
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HELLODJI
lvl.1

South Korea
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RedHotPoker Posted at 2018-8-26 11:48
Please continue to search. Walking  much farther out than expected...

We've looked up the roof using other drone to find it right after we've lost it.
2018-8-26
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HELLODJI
lvl.1

South Korea
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msinger Posted at 2018-8-26 07:16
Phantoms don't just disappear out of thin air. One of the following likely occurred:

- The Phantom crashed into an obstacle along the waypoint route

We've looked up the roof using other drone to find it right after we've lost it.
2018-8-26
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Bashy
Captain
Flight distance : 2354357 ft
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United Kingdom
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Have you been back to where you took of from?
2018-8-26
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RedHotPoker
Captain
Flight distance : 165105 ft
Canada
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HELLODJI Posted at 2018-8-26 19:23
We've looked up the roof using other drone to find it right after we've lost it.

Yes, but continue down that path, farther and farther, your battery had plenty of power left...


RedHotPoker
2018-8-26
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