As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE COUNTERWEIGHT ROD SHEARED AT THE BASE OF THE SPACER AND DRAG BRACE ATTACHMENT ON THE MAIN ROTOR HEAD. THE COUNTERWEIGHT, WASHERS AND SPACER LEFT THE AIRCRAFT CAUSING A VIBRATION IN THE AIRCRAFT AND FLIGHT CONTROLS. THE TIE ROD IS SUBJECT TO A 300 HOUR MAGNAFLUX INSPECTION (ASB 47-78-2) WHICH HAD BEEN CARRIED OUT 116.5 HOURS PREVIOUS TO FAILURE.