What was found
(CAN) SLIP RING PURCHASED NEW, FAILED OUR VISUAL INSPECTION. FOUND IMPERFECTIONS IN THE RESIN SHOWING SEVERAL PIN HOLES & VOIDS. SEVERAL PROPELLERS HAVE BEEN REMOVED PRE-MATURELY DUE TO SLIP RING FAILURE & RINGS COMING LOOSE & WARPING FROM MISSING OR FALLING OUT RESIN BETWEEN THE RINGS. THIS WILL CAUSE ISSUES FOR PROPELLER DEICE IN FLIGHT IF THE RINGS BECOME WARPED & OUT OF POSITION. SLIP RINGS MUST BE WITHIN 0.010 INCHES AS RUN OUT, IT PREVENT WEARING THE BRUSH BLOCKS BRUSHES PRE-MATURELY.