Reply from DJI:
Thank you for contacting DJI Support.
We apologize for the experience you have had with your
product. We understand that your aircraft incurred stress cracks.
In regards to these cracks, all Phantom series
experience stress cracks. these are usually caused by: flying the aircraft
under extreme weather condition that can make the body frame brittle, flying
the aircraft above or below the operating temperature, excessive motor
heating and vibrations, accidental
bumps/drop when not in its protective case, hard landings and crash.
Please make sure to avoid such occurrence and if there
are signs of stress cracks, respond to this e-mail if you want to process a repair for you.
Thank you for understanding
Best Regards,
Amadeo P.
DJI Technical Support