As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER SHUTDOWN (FOLLOWING LOGGING OPERATIONS), A LOT OF BLACK GREASE AND METAL HAD BEEN SLUNG FROM THE SWASHPLATE SEAL AND PIECES OF BEARING CAGE WERE FOUND ALL OVER THE AFT SWASHPLATE AREA AND THRUST DECK. SWASHPLATE WAS REMOVED AND BEARINGS WERE EXTREMELY ROUGH TO TURN.