As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROPELLER SUBMITTED FOR INSPECTION FOR THE CAUSE OF RED OIL LEAK IAW AD 91-15-04. PROPELLER WAS DISASSEMBLED AND BLADE RETENTION THREADS OF THE HUB SN 723369 WERE EDDY CURRENT INSPECTED. THE HUB WAS FOUND CRACKED IN THE RETENTION THREADS. THE BLADE COUNTERWEIGHTS WERE ALSO FOUND UNDERTORQUED AND 1 HAD ROTATED OUT OF PROPER ALIGNMENT WHICH WAS FOUND TO BE CONTRIBUTING TO A LOW STATIC RPM CONDITION.