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Any successful warranty claims after a prop flying off?
390 25 2017-4-15 08:48:45
Phantomski
Second Officer
Flight distance : 501177
United States
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So... my refurb P3 Pro crashed yesterday! I had it less than a month!
LOG: http://www.phantomhelp.com/LogViewer/6LXR3E5D1WQH23P4NTDW/

Hovering at 50ft, over a parking lot, checking my app settings, and suddenly I hear the motor sound change, and bum!
Damage - camera broke off from the arm, landing gear is lose, one arm is twisted a bit.
This was flying on DJI CF props, which I know some people experienced issues with, soi this was meant to be lkast flight on them, since I simply did not have my stockj props with me.
This was a 3rd battery of the day.
My frustration comes, from knowing that the fact that I followed my own preflight procedure, and checked all props 3 times, is only my word - I KNOW I have tighten them - but I realize it's just my say so...
I am pretty fristrated, hence me wodering if anyone actually did get a waranty fix or replacement under simmilar circumstances?
Oh, one of the props I never found, so I am pretty certain it just flew off.... Kicking myself in a butt, because I knew there were suspected issues with CF props flying off!
Well... there, for now.,. Thx for any ideas, advice, to all...
Back to flying Advanced for now I guess ;) On stock props! ;)


And his fall was great!

And his fall was great!
2017-4-15 08:48:45
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wntmldrs_belgiu
Hobbyist
Flight distance : 57130
Belgium
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That's tough.
Do you take off the props after every flight ?
Just wondering. I've haven't touched mine in a year.
Maybe cheaper to go for another refurb.
2017-4-15 09:45:02
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Phantomski
Second Officer
Flight distance : 501177
United States
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I do take them off,m and flew probably easily 40 batteries on these, never had an issue...
yes, another refurb fore $550 is an option, but it hurts.. even though it's "only money"...
And it's not like i did not fly an advanced for a year too...
2017-4-15 10:57:07
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Mark The Droner
Intern Pilot
United States
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Yes, I've heard of successful warranty claims from a P3 prop flying off so it's worth a shot.  Good luck.
2017-4-15 11:17:20
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T3rdEye
Student Pilot
Flight distance : 44643
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Back to flying Advanced for now I guess ;) On stock props! ;)... That's if your son will give it up now that he is a pilot....

Seriously, I am sorry to hear about your loss.  It doesn't sound like a pilot error.  We will just have to wait and see what others think.  Will you be posting your flight log?


2017-4-15 12:54:06
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DJI Mindy
Administrator
China
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Sorry to hear about your crash.
Did you get in touch with our tech support and send it in?
If your aircraft is still within warranty period, our engineers will help to analyse the flight data and let you know what could have caused the issue.
2017-4-15 19:35:38
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HWCM
Intern Pilot
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United States
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Were they on really tight? I wonder what makes these props fly off as opposed to the plastic ones?
2017-4-15 22:10:04
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endotherm
Second Officer
Australia
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HWCM Posted at 2017-4-15 22:10
Were they on really tight? I wonder what makes these props fly off as opposed to the plastic ones?

It's probably because they are more rigid than the plastic ones, and if they bind or snag while screwing them on, it might feel like they are bottoming out and are fully attached.  Unfortunately it may only be loosely attached and part way along the shaft. With gentle flight, they should self-tighten from this point, however, if it is flown "hard" and there is sudden acceleration and deceleration with active braking, the forces applied can in some circumstances cause the prop to unwind and subsequently fly off.

The telemetry from the motors is captured in the flight logs, and it can be calculated whether the props flew off or broke in flight.  Unfortunately this data is not returned to us users from the normal flight log readers such as Phantom Help or Healthy Drones/AirData.  You would need to sync the flight record with DJI and ask them to examine it, specifically the motors for loss of prop, to determine if there is anything supporting a lost prop incident.   A prop unscrewing and lost would probably be treated as pilot error, whereas a blade breaking off in flight would probably be considered for warranty purposes.  The motors would be returning different speeds/data depending on whether they have 0, 1 or 2 blades attached.
2017-4-16 04:59:53
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Phantomski
Second Officer
Flight distance : 501177
United States
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DJI Mindy Posted at 2017-4-15 19:35
Sorry to hear about your crash.
Did you get in touch with our tech support and send it in?
If your aircraft is still within warranty period, our engineers will help to analyse the flight data and let you know what could have caused the issue.

Mindy - thank, you - I did not yet, as it was Friday evening, will do today later or monday. I assume we can confirm that the props I used ARE indeed DJI, even though they are fiber carbon enforced.
The log from Apr 14, 18:30pm, MST (GMT+6) clearly points at the prop, as the motor went "idling, lose prop".... gregt at post dot pl

As for the people who ask "how come" I do not know - but I suspect that even though the hub feels plastic, it must be harder and more slippery than stock plastic... so even though I am careful and make sure things r good, it is more likely to come loose. I have read this about these props - so I never used them for a year, but not on the pro and a bit windier weather, I decided to give them a try.. somewhat against my better judgement, which, obviously, had some foundation to it.
2017-4-16 11:22:34
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Phantomski
Second Officer
Flight distance : 501177
United States
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HWCM Posted at 2017-4-15 22:10
Were they on really tight? I wonder what makes these props fly off as opposed to the plastic ones?

Only the usual hand pressure - I have bad experience with over tightening as well. I do not use any tool, just by hand. Keep in mind, I have quite a few hours on these props, never had an issue.. very suspicious....
2017-4-16 11:25:53
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Phantomski
Second Officer
Flight distance : 501177
United States
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Added a log link to original post.
2017-4-16 11:28:23
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DJI Mindy
Administrator
China
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Phantomski Posted at 2017-4-16 11:22
Mindy - thank, you - I did not yet, as it was Friday evening, will do today later or monday. I assume we can confirm that the props I used ARE indeed DJI, even though they are fiber carbon enforced.
The log from Apr 14, 18:30pm, MST (GMT+6) clearly points at the prop, as the motor went "idling, lose prop".... gregt at post dot pl

Don't worry, our engineers will review the flight data.
If you have any further issue about your case, please feel free to let me know.
2017-4-16 23:59:34
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Phantomski
Second Officer
Flight distance : 501177
United States
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Thx. I will follow up as soon as the case fully takes off. I guess there's a diff. between the original case created, and then the case opened for a repair and full evaluation.
Just created a repair case: CAS-582255-X3F4J9
Will see what develops and how soon!
2017-4-17 19:57:01
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HWCM
Intern Pilot
Flight distance : 612849
United States
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Did you find the missing prop? Was it in one piece? You are positive it flew off before hitting the ground. I just do not understand how these things come off as they are counter screwed. The motors do not have real active braking in the sense that the motors stop suddenly like a racing quads, but rather the braking is a tilting of the quad in the opposite direction of travel by slowing the trailing props and speeding up the forward props. Even if the Phantom had true active braking, the momentum of the propeller on the motor that is suddenly stopped is in the direction of tightening not reverse.
2017-4-17 21:36:02
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endotherm
Second Officer
Australia
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HWCM Posted at 2017-4-17 21:36
Did you find the missing prop? Was it in one piece? You are positive it flew off before hitting the ground. I just do not understand how these things come off as they are counter screwed. The motors do not have real active braking in the sense that the motors stop suddenly like a racing quads, but rather the braking is a tilting of the quad in the opposite direction of travel by slowing the trailing props and speeding up the forward props. Even if the Phantom had true active braking, the momentum of the propeller on the motor that is suddenly stopped is in the direction of tightening not reverse.

As you say, braking is performed by slowing the motors and tilting the aircraft.  A sudden change of direction could cause a motor to reduce speed instantaneously.  If the prop isn't sufficiently bonded to the prop shaft, momentum in the prop will continue to rotate it at the previous speed, while the shaft is spinning slower.  They are both spinning "forward" but one is moving faster than the other.   This relative difference results in the prop advancing in the "unwind" direction, until it disconnects entirely.  It may take a few of these sudden reversals to accomplish, it won't necessarily occur the first hard brake you do.
2017-4-18 05:06:26
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Sp00nix
Hobbyist
Flight distance : 8741
United States
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Would using something like loctite blue help when using props like these or with metal hubs?
2017-4-18 05:44:02
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Phantomski
Second Officer
Flight distance : 501177
United States
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These did NOT have metal hubs.. I think they are just less grabby than the stock.. Loctite is an option for metal to metal, but is dangerous for plastic parts....
An no, I have not found the prop.. I bet it's somewhere further away, so I have no chance to find it....well, perhaps by chance only...

And yes, it is understandable that props will fly off if not tighten, mine were, after 3 checks.. that is why I am really ticked by this...  but then again, every crash is.. well.. annoying! ;) Regardless of whose fault it is....
2017-4-18 14:25:17
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MJLSTUDIOS
Intern Pilot
Flight distance : 119725
United States
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Why do warranties? Too much of a hassle! State Farm Insurance for $60 per year, no deductables, no fault and replace the drone and kit in two days! Ive had this insurabce for over a year and filed a claim...no problem.
2017-4-19 02:20:47
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Phantomski
Second Officer
Flight distance : 501177
United States
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MJLSTUDIOS Posted at 2017-4-19 02:20
Why do warranties? Too much of a hassle! State Farm Insurance for $60 per year, no deductables, no fault and replace the drone and kit in two days! Ive had this insurabce for over a year and filed a claim...no problem.
EDIT*** I found one! Turns out one of the parents in my kids' class works for SF, and he said he will check on it!
MJStudios: u keep saying that, nobody here in Colorado seems to know of that program! i have inquired with number of agents, no clue. Pinged the corporate, they will confirm nothing, just tell me to contact an agent... not to mention, the crash has already happened..
2017-4-19 06:44:28
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Dalork
Hobbyist
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Sorry to hear about your misfortune Phantomski, I was about to order some of the DJI props myself. I loved how yours looked but think I will stick to standard now for obvious reasons, I found under my home contents insurance they gave me cover for accidental breakage (which includes items when removed from the house for upto 90days) cover. Well turns out it was an optional add-on that we had and didn't know about to be honest lol, only found out when asking if they had insurance for quadcopters. Good news was they said they not only covered them under the existing policy but also had $20,000,000 public liability included to cover any possible damage to people or their property also.

I'm in a different country but long story short lol, have you asked your home building/contents insurer (if you have one currently) to see if a policy you may already have might give some kind of cover.
2017-4-19 21:38:25
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Sasquad
Hobbyist
Flight distance : 3815
United States
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I always use the tightening tool. Not over tightening but rather to snug them up good. I remove them after each flight and store the quad in the original box. How many times can they Be safely used before replacing them?
2017-4-20 01:08:16
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Phantomski
Second Officer
Flight distance : 501177
United States
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I never had issues with the plastic standard ones, and they look ok too, after coloring with RIT - I ALWAYS remove them before putting my quad into the bag, and i used one set of props for like 10 months.. I replaced them only, because I noticed some vibrations... NEVER had an issue with them becoming lose. The CF ones look good, but I have read many cases of flyoff....  I always, wrongly, assumed that the pilot did not tighten them.. guess what.
There's black RIT, so it's easy to block off some area with electrical tape, and color them to look just like the CF ones.
My baby is in the mail to DJI now, we will see what happens.And yes, I do have insurance coverage now, but 1000 deductible, so no point there.....

2017-4-20 16:03:05
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MJLSTUDIOS
Intern Pilot
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United States
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Phantomski Posted at 2017-4-19 06:44
EDIT*** I found one! Turns out one of the parents in my kids' class works for SF, and he said he will check on it!
MJStudios: u keep saying that, nobody here in Colorado seems to know of that program! i have inquired with number of agents, no clue. Pinged the corporate, they will confirm nothing, just tell me to contact an agent... not to mention, the crash has already happened..

Insurances vary from state to state. SF may not cover drones in CO. The type of insurance I got was personal property insurance ie. covering jewelry, cameras, etc.
2017-4-21 02:22:52
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Phantomski
Second Officer
Flight distance : 501177
United States
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MJLSTUDIOS Posted at 2017-4-21 02:22
Insurances vary from state to state. SF may not cover drones in CO. The type of insurance I got was personal property insurance ie. covering jewelry, cameras, etc.

i do wonder if it "counts against your record" though.. i will do more research, sionce the guy helping me is a friend.... i know i could have bought a 2 year full protection for 159 from drone nerds as well, and then of course dji for 279.....
2017-4-21 06:58:42
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MJLSTUDIOS
Intern Pilot
Flight distance : 119725
United States
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Phantomski Posted at 2017-4-21 06:58
i do wonder if it "counts against your record" though.. i will do more research, sionce the guy helping me is a friend.... i know i could have bought a 2 year full protection for 159 from drone nerds as well, and then of course dji for 279.....

You're not wondering if it goes against your driving record are you!? I've filed a claim for one P3P...the whole P3P kit was replaced within two days....that was last year. I received my new policy for this year...the policy did not increase in price...still $60 per year!
2017-4-22 14:42:28
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Phantomski
Second Officer
Flight distance : 501177
United States
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MJLSTUDIOS Posted at 2017-4-22 14:42
You're not wondering if it goes against your driving record are you!? I've filed a claim for one P3P...the whole P3P kit was replaced within two days....that was last year. I received my new policy for this year...the policy did not increase in price...still $60 per year!

No, i meant against "claims"... many insurances, state farm too, keep track of claims, and may chose to say someone is "not insurable"....
2017-4-22 20:03:05
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