What was found
PILOT REPORTED RT ENGINE SURGING, SMOKE FROM EXHAUST SIMULTANEOUSLY WITH RT GENERATOR GOING OFF LINE IN CRUISE FLIGHT. FOUND RT STARTER/ GENERATOR ANTI-DRIVE (BRUSH END) BEARING SEIZED, INPUT SHAFT INTACT. REPLACED STARTER/GENERATOR AND EXAMINED OIL FILTER IAW MM FAILED GENERATOR SPECIAL INSPECTION PROCEDURES. NO APPRECIABLE METALLIC PARTICLES NOTED IN OIL FILTER SENT IN FOR ANALYSIS. GENERATOR OPERATINS NORMAL AND ENGINE PERFORMANCE WITHIN MM, SERVICE LIMITS AFTER STARTER/GENERATOR REPLACEMENT.