As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROPELLER RECEIVED FOR OVERHAUL. AFTER PROPELLER DISASSEMBLY, HUB CRACKED IN NR 1 BLADE SOCKET 1 THREAD IN. ONE INCH LONG AT 9:30 O'CLOCK POSITION. CRACK DID NOT GO THROUGH THE HUB TO THE OUTSIDE OF HUB. CRACK FOUND BY USING 10X MICROSCOPE INSPECTION. HUB WAS RETURNED TO CUSTOMER.