Post flight, when removing my rotors, i noticed that my CCW motors were very hot, in comparison to my CW motors....
This is the image of them... is this a burnt motor?  

Motor #2 (other CCW)

If I were to go off these images alone I would say that would be a safe idea based off it looks like a few coils have been fried. Batter safe than sorry because you would hate for motor lock or failure mid flight because there is no 3 rotor failsafe.

JMO

I had to look at mine, still shinny. I think you have a problem!
Did you oil your motors?

Wow; it looks as though the wire insulation has actually melted, or something entered the motor!! If so that's crazy hot, and unfortunately those motors would be toast   

I would say you are lucky you got your bird back safely. Is it a P3P ?
JMO but I would not try and fly it until you speak with DJI !

Thanks for the pictures as it will be something I'll be keeping an eye out for.

Thanks for your replies...

I just ordered 2 x new CCW motors for my DJI Phantom 3 ADV.    I wonder if any debris had entered them? It does seem strange that it is only the CCW motors and not the CW ones.

Fried!  Any time you cook a coil, you've changed the electrical characteristics, and usually the core it's wound on.

I'm overly cautious about these kinda things......Unless I knew what caused the other 2 to do that... I personally would have went ahead and replaced all 4.
However you seem to be the type that keeps a good eye on things.
Good luck . Take good notes on the replacement and post some photos for us please.

I'd suggest you to contact our support and send it in. The coil is burnt.

DJI-Paladin Posted at 2016-8-12 03:18
I'd suggest you to contact our support and send it in. The coil is burnt.

Thank you all.  Appropriate action taken.