As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) TAIL ROTOR DRIVE TRAIN AFT SHORT SHAFT TO LONG TAIL ROTOR DRIVE SHAFT DISC ASSEMBLY FITTED WITH INCORRECT TYPE FLAT WASHERSINSTEAD OF WITH CORRECT TYPE BEVELLED WASHERS AS REQUIRED BY THE MAINTENANCE MANUAL - UNAPPROVED PART - PERSONNEL/MAINTENANCE ERROR