As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING A TEFLON LINING REPLACEMENT ON MAIN ROTOR BLADE ROOT OBSERVED A VERTICAL CRACK IN THE BEARING LAMINATE AT ONE OF THE BLADE BOLT HOLES. DAMAGE IS NOT PERMISSIBLE IAW EC135 MM 62-11-00, 6-1, 26 B. SENT BLADE TO ECD FOR REPAIR.