As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED SEVERE VIBRATION AFTER INSPECTION FOUND ORANGE BLADE SHEAR RESTRAINT AT MAIN ROTOR SYSTEM FAILED. CNETER BUSHING HAD BECOME DEBONDED FROM ELASTOMERIC. VISUAL INSPECTION DIFFICULT BECAUSE OF ORIENTATION AT INSTALLATION. (K)