As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PN 5999 ROLLER STARTED GALLING. LEFT SMALL STEEL FLAKES ON OIL SCREEN WHICH WERE FOUND AND IDENTIFIED DURING INSPECTION. ENGINE NOSE CASE REMOVED, AND CAM RING PN 11768 REMOVED FOR RECONDITIONING.ALL 5999 ROLLERS REPLACED AS A PRECAUTION.IF PROBLEM HAD BEEN FOUND LATER, SERIOUS DAMAGE TO ENGINE WOULD HAVE RESULTED.