As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENGINE WAS SENT TO OVERHAUL SHOP FOR REPAIR AFTER THE OPERATOR REPORTED A SCRAPING NOISE IN THE POWER SECTION, UPON ROTATION OF THE PROPELLER SHAFT. THIS REPORT IS ISSUED TO DISCUSS THE FINDINGS RELATING TO THIS INVESTIGATION. SEE ATTACHED EIR PT6A 2015-052.