KlooGee
Captain
Flight distance : 16641309 ft
United States
Offline
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Here is my analysis of your log file from your other thread you started a few days ago: https://forum.dji.com/forum.php? ... =161299&pid=1510896
Firstly, I'm very sorry to hear of your troubles.
I obviously wasn't there, so I can't make any comments or assumptions on what you saw and did. I can only comment on what I see in the data in the logs that are recorded.
Firstly, the last location recorded in the log files is at: 51.53258182, -2.53514453
However, as of the last log entry, it was moving in an easterly direction moving away from the home point at about 19mph (8.5m/s) due to pilot stick inputs. Unfortunately, this last location is also right above a bunch of trees and right next to a busy highway. I think finding it might be a bit of a challenge.
Again, I wasn't there, so I can only comment on what I see in the logs... When I've investigated other incidents, when the app crashes, the log ends. That doesn't seem to the be the case here. In this case, there appears to be valid logging for most of the flight right up until near the end.
In the logs, it looks like the pilot is in full control of the aircraft. All stick inputs from the pilot resulting in matching coordinated movements of the aircraft. Based on what can be seen in the logs, I'm not surprised to see DJI's response to your case. Unless you have other evidence to provide for them, I highly doubt they would decide to cover this under warranty.
I know it is difficult to do, but unfortunately you also have to look at the situation from DJI's perspective. If you were running a business, I think there is a good chance you would very likely come to the same conclusion they have with the evidence that is available. From a business's perspective, they can only make decisions like this based on evidence. They would be out of business in no time if they didn't.
Some recommendations based on what I see:
- Always use a screen recorder on your phone during flights so that you have evidence of what you experienced and were seeing during the flight. In a situation like this, if the app did crash, then you would have video evidence of this to provide to DJI to counter what is seen in the log files.
- It generally is not a good idea to take off for a new flight with only 40% remaining on a battery. This is especially important on the smaller drones with limited battery life like the Mavic Air. The time remaining from 40% until it goes into critical failsafe mode and tries to autoland is surprisingly quick. Unless you are very experienced, this can make for a challenging situation.
- As soon as the battery gets to 30%, start bringing it back manually (don't RTH) ASAP so that you don't get into a bad situation.
I wish you the best of luck moving forward and hope you have another drone soon and have many fun and safe flights ahead!
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