As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN ROTOR SYS INST PILOT REPORTS EXCESSIVE MR VIBRATION. SWASHPLATE DRIVE SCISSORS WORN .128 INCH (MEASURED WHILE INSTALLED). PITCH LINK HAS WORN .038 INCH IN 77 HOURS. INSTALLED NEW PN-107. PARTS RETURNED TO MDHS FROM RNO. NOTE: WITH SCISSORS REMOVED THERE IS MORE PLAY IN HINGE WHEN LOWER LINK IS APPROX 60_ TO UPPER LINK. SOR 406837 IS DUPLICATE TO 406831.