As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT, EXPERIENCED NR 2 ENGINE VIBRATION ALONG WITH NR 2 GENERATOR DROPPING OFF LINE. REDUCED ENGINE TO IDLE, NO HELP. CREW PERFORMED ENGINE SHUTDOWN PROCEDURES AND DIVERTED TO OAK. LANDED WITHOUT INCIDENT. REPLACED NR 2 ENGINE PER BOEING M/M.