As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON COLLECTIVE LEVER P/N 222-010-497-109FM, PIN P/N 222-010-456-005 SPUN INSIDE BORE OF COLLECTIVE LEVER PRODUCING A BLACK GREASE TRAIL ON SWASHPLATE AND LEVER ASSY. PIN IS THERMAL FIT AND PRESSED INTO COLLECTIVE LEVER. THE PIN BORE OF COLLECTIVE LEVER IS WORN BEYOND ANY SERVICEABLE LIMITS AND UNAIRWORTHY. CAUSE OF FAILURE IS UNKNOWN AT THIS TIME. THERE WERE NO ADVERSE EFFECTS TO FLIGHT AND WAS DISCOVERED DURING A MAJOR INSPECTION PROCESS.