As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) TAIL ROTOR BLADE TAB DEBONDED AND SEPARATED FROM BLADE CAUSING EXCESSIVE VIBRATION. TAIL ROTOR BLADE TRAILING EDGE DAMAGED. INVESTIGATION FOUND FAILURE WAS DUE TO INCORRECT SOLVENT USED DURING TAB BONDING PROCEDURE AT OVERHAUL. SECONDARY EFFECTS OF TAB LOSS WERE TAIL ROTOR GEARBOX FAILURE DUE TO ALUMINIUM ON THEOIL AND DAMAGED TAIL ROTOR DRIVE TRAIN.