From this discussion, I'm getting some spare covers just in case.  One of the reviews says they just snap in.  Here is the Amazon link:  https://www.amazon.com/Spark-Lig ... i+spark+light+cover

DJI Natalia Posted at 2017-7-10 04:30
We are sorry about the inconvenience caused, just want to verify, it's hard landing or slightly crashed?
We have reported this situation to the engineers as well.

Happened to me as well. No crash -just removing the propeller guards. I don't see a way to put it back in place myself. I don't want to push to hard. Suggestions??

Euro7r Posted at 2017-7-10 17:40
Are these held on by glue? Seems fragile that it'll just come off like that.  

I'm thinking of putting a few drops of super glue on around the edge for added security if this is something that can fall off over time.

Support actually says not to glue them back on, But I have a couple buddies who have glued their replacement sets on their Sparks and they haven’t had any issues.....  I hope that helps ?

Maybe if you are all having your Led platic covers dropping off just run a bit of silicon around the edge or tape ??

they just clip in on two tabs , i had my last ones off when i did a shell repair  and since i had silicon out for repair i just added some to the plastic covers.....

Wow. I didn't expect there would be all that circuitry there. Perhaps there is a sensor that works better out on the arms.

Tentoes Posted at 2018-9-12 08:45
Wow. I didn't expect there would be all that circuitry there. Perhaps there is a sensor that works better out on the arms.

Circuitry you see is called electronic speed controler (esc) and its purpose is to drive brushless motors.

Oh. Well that would make sense rather than having the high-current chips in the body.