I flying my DJI Flip and it suddenly crashed. I have notified DJI about it, and analytics showed that it was pilot error due to flying towards obstacles.
Flight Time T=473.4s,Relative Height H=-39.2m,Distance to Home Point D=24.2m,the pilot pushed the pitch stick forward，the aircraft flew to the front direction，the aircraft crashed with obstacles
The aircraft has no vision obstacle avoidance system
However, I wanted to argue that there was no obstacle in the area and that I am flying well above any buildings or obstacles. According to my RC 2, I lost transmission and then the drone proceeded to dive down.
I will post a 3D flight path and drone footage prior to crash. Kindly advise; I am a newbie pilot and have only had my Flip for five days.
Hello, messenger. I am concerned as to why I crashed even without obstacles in the area. DJI analysis mentioned pilot error but I am confident with the path I took and that it was clear for flight.
Hello. Because RC 2 showed red warning and said lost transmission then proceeded to glitch like the video was somewhat going in and out. The “find my drone” footage, the 3D flight path (KML), and flight log are all consistent on where the drone crashed and was found. Not to confuse with the video I actually took. Yes, I did turn off the video at 4:50+ but the “find my drone” video is different from that of my recording. Hope this makes sense.Lastly, and I do apologize for not arranging my thoughts in one reply, kindly compare the “find my drone” video VS where the drone was at 4:50+. It’s not the same area. The “find my drone” video shows the drone at exactly where the flight log ended VS the 4:50+ (see attached) time stamp is in a different location. KML (google earth flight path) should show the drones location at different time period.
I didn’t receive an email from you. Just for reference, I don’t work for DJI, and this forum isn’t affiliated with DJI.
Yes, I took another look at your video and now I can see that you’re playing the final 10 seconds of the flight using the Find My Drone feature.
I don’t see anything in your flight log that indicates the signal was weak/lost or that the drone crashed.
The DAT flight log stored on the drone itself likely contains additional data that explains why the crash occurred. Did you send that DAT flight log to DJI for review?
The time they referenced, 473.4s, does not exist in the TXT flight log you shared. That flight log ends at 414.3 seconds. If their findings are accurate, it sounds like the drone might have crashed on its way back to the home point. However, it sounds like you’re saying you found the drone at the location in the 10 second video.
I apologize. I got the notification through my email and responded there in error.
my copy of the log shows >6 mins of flight log. Thank you so much for helping me. I actually did not know that you were not affiliated with DJI but even so, you’re still helping me figure this out.
Yes, I found the drone at the last 10 sec location. As it passed at least 20 meters above the wall and fell over on the rooftop of the building seen in the video. I added the discrepancy you pointed out to my post in the DJI forum. As a newbie to this, I’m very thankful for your inputs and being patient with me.
Hello, msinger. I will do that. I’m still waiting for the re analysis. I submitted photo evidence of the location where the crash occurred and had them review it together with the cached video the drone took seconds prior to crashing.
Hello, msinger. They sent me this, and are still claiming that I crashed the drone into an obstacle because I did not turn on the obstacle avoidance feature. It’s getting frustrating because I have evidence that there was no obstacle at the altitude the drone was flying at. Just to ask, have you had the chance to view the ‘find my drone’ video I posted and compare it to the KML? Just curious about your opinion on this matter.
If I understand you correctly you’re using the .txt log file data to determine the altitude of the Flip? If the reported altitude was higher than the actual altitude then the Flip could have crashed into the building as DJI is claiming?
The reason I ask is that the Flip (and Neo) rely heavily on the vision system to determine location and, possibly altitude. In fact, starting with the Air 3 there have been many incidents where the AC was confused about vertical velocity.
Unfortunately, the data to determine this can only be found in the .DAT.
I noticed over on DJI Forum you made the statement
“I have data that would suggest that the drone was reading the altitude incorrectly”.
What is the data you’re referring to?
And any comment on how DJI is showing the accident occurred around 474 seconds, but the TXT flight log ends at 414.3 seconds? It seems like they might already have the DAT.
