As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AN ATTEMPT WAS MADE TO INSTALL THE NEW TAIL ROTOR HUB AND BLADE ASSEMBLY ON THE AIRCRAFT AND THE FLAPING ANGLE COULD NOT BE ADJUSTED. ON INSPECTION IT WAS FOUND THAT THE YOKE ASSEMBLY WAS MACHINED 90 DEGREES TO WHERE THE CUTOUTS THAT ALLOW THE FLAPPING. THE RESULT WAS THE STATIC STOP PART NUMBER 206010742003 CONTACTED ON THE SIDE AND NOT STOP FACE DECREASING THE AMOUNT THE HUB ASSEMBLY IS ALLOWED TO TRAVEL. THE TAIL ROTOR HUB ASSEMBLY WAS REPLACED WITH A NEW PART.