What was found
AFT ROTOR HUB WAS REMOVED. ON DISASSEMBLY IT WAS REVEALED THAT THE YELLOW LAG BEARING WAS GALLED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFT ROTOR HUB WAS REMOVED. ON DISASSEMBLY IT WAS REVEALED THAT THE YELLOW LAG BEARING WAS GALLED.