As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE SPINNER BULKHEAD WAS FOUND CRACKED COMPLETELY AROUND THE CIRCUMFERENCE OF THE MOUNTING FLANGE. THE TOTAL TIME ON THE SPINNER ASSEMBLY IS 315.5 HOURS. THIS IS THE THIRD CRACKED BULKHEAD FOUND ON THIS AIRCRAFT. THE TIME IN SERVICE OF THIS BULKHEAD IS 42.8 HOURS. THE FIRST BULKHEAD WAS FOUND CRACKED (SEPARATED FROM PROP HUB) AT 104.6 HOURS TIS. THE SECOND WAS FOUND CRACKED AT 168.1 HOURS TIS. MCCAULEY SERVICE BULLETIN 237 WAS COMPLIED WITH AT THE FIRST REPLACEMENT. SB 237A WAS COMPLIED WITH AT THE SECOND REPLACEMENT.