What was found
EN ROUTE FROM BOS TO OXC, THE CHIP DETECTOR LIGHT FOR THE RIGHT ENGINE ILLUMINATED. NO OTHER ENGINE ABNORMALITY WAS APPARENT. THE AIRCRAFT LANDED AT OXC WITHOUT INCIDENT. INSPECTION OF THE CHIP DETECTOR REVEALED STEEL CHIPS. A LAB ANALYSIS INDICATED THAT A ACCESSORY BEARING WAS FAILING. A TEAR DOWN OF THE GEAR BOX CONFIRMED THAT THE ALTERNATOR BEARING CAGE HAD FAILED. THE BEARING WAS REPLACED THE AT THE AIRCRAFT WAS RETURNED TO SERVICE. (M)