Can I fly the drone aircraft if the propellers are damaged?
During flight, the propellers and the propeller attachment points (bayonets) are subjected to a strong force. Therefore, even if they are slightly scratched or deformed, we recommend replacing them with new ones.
A replacement propeller can be purchased separately.  Go to Parts and Accessories. 
If you need to replace the propeller attachment points,  Contact the Product Support team  to request repair.