As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUBJECT BLADE WAS RECEIVED WITH SCORING DAMAGE AROUND THE OUTSIDE DIAMETER OF THE BLADE BUTT AREA. DAMAGE IS LOCATED 360 DEGREES AROUND THE BUTT, AND IS APPROXIMATELY .020 INCH DEEP BY .300 INCH HIGH. THE DAMAGE APPEARS TO POSSIBLY HAVE BEEN CAUSED BY RESIDUAL PEENING SHOT BALLS INSIDE THE HUB.