As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE COURSE OF A NORMAL PRE-FLIGHT INSPECTION, THE PILOT NOTICED LEFT SPINNER WAS LOOSE. UPON CLOSER INSPECTION, NOTICED THE BULKHEAD ATTACH HOLES WERE WALLOWED OUT THAT ATTACH THAT UNIT TO THE SLIP RING ASSEMBLY. IT IS SUSPECTED THAT WHILE THE ATTACHING SCREWS WERE STILL SAFETY WIRED TOGETHER, THEY MUST HAVE BECOME LOOSE OVER TIME WHICH ALLOWED THE HOLES TO BECOME WALLOWED OUT.