What was found
(CAN) TURBOMACHINE WAS SENT FOR INVEST AND REPAIR AFTER OPERATOR REPORTED TURBOMACHINE MAKING METAL. DISASSY OF TURBOMACHINE FOUND NR 5 BEARING IN POOR OVERALL CONDITION, BUT NO IMMEDIATE APPARENT MATERIAL LOSS. AFTER CLEANING, A MORE DETAILED INSP FOUND 3 ROLLER BEARING TANGS ON SEPARATOR BROKEN AND MISSING AND TOP EDGES OF A NUMBER OF OTHER TANGS SHOWING EVIDENCE OF RUBBING AND ABRASION WITH MATERIAL LOSS. THIS WAS SOURCE OF METAL CONTAMINATION. TANGS SHOULD BE CLEAR OF ALL OTHER SURFACES IN A TYPICAL BEARING AND NO UNUSUAL WEAR FOUND IN ROLLER POCKETS OF THIS BEARING. IT APPEARS FAULT LAYS IN CLEARANCES BETWEEN ROLLER CAGE AND RACES AND/OR ROLLERS ON THIS BEARING. PART TC: 23,641.