As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FOUND 2 BEARINGS IN ENGINE ACCY GEARBOX INTERMITTENTLY BINDING, STARTER GENERATOR DRIVESHAFT OFF BEARING (PN 3072885-1) AND OIL PUMP DRIVESHAFT FWD BEARING (PN 3072885-1) . REPLACED STARTER GEN DRIVESHAFT FWD BEARING (PN 3072883-1) AS A PERCAUTIONARY MEASURE. ENGINE RUN PERFORMED POST REPAIR. NO REOCCURANCE OF VIBRATION NOTED AT THIS TIME.