As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BEARING INNER RACE HAD METAL REMOVED, APPROXIMATELY .0625 INCH WIDE BY .1875 INCH LONG. OUTER RACE HAD SMALL INDENTATIONS FROM BALL BEARINGS WITH NO METAL REMOVAL. BALL BEARINGS APPEARED NORMAL. SIKORSKY AIRCRAFT SAID THIS IS CAUSED FROM LACK OF PROPER LUBRICATION. HAVE INSTRUCTED CREWS TO PURGE BEARINGS IAW SIKORSKY MM.