As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A SLOW LOW LEVEL TURN THE PILOT EXPERIENCED AN ABRUPT VIBRATION IN THE TAIL ROTOR PEDALS. UPON INVESTIGATION AN AN3-3A BOLT WAS FOUND EMBEDDED IN THE LEADING EDGE OF THE TAIL ROTOR BLADE. THE BOLT HAD COME LOOSE FROM THE TAIL ROTOR GEARBOX FAIRING.