As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CALENDER REPLACEMENT OF MAIN ROTOR TT STRAPS THE INBOARD BEARING CAGES HAD DETERIORATED ALLOWING ROLLERS TO DISPLACE RESULTING IN BRINELLING OF BOTH INBOARD JOURNALS OF THE MAIN ROTOR YOKE. THE BRINELLING WAS LOCALIZED ON THE AFT SIDE OF THE JOURNALS.