As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TUBE APPEARED TO HAVE HAD A CRACK UNDERNEATH THE LUG WELD PRIOR TO COMPLETE FAILURE. THE FAILURE OF THIS TUBE ASSEMBLY CAUSED SEVERE VIBRATION IN AIRCRAFT, RESULTING IN DAMAGE TO MAIN ROTOR BLADES, TAIL ROTOR BLADES, DRIVETRAIN, TAILBOOM AND CANOPY.