As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED DUE TO ENGINE VIBRATION FOLLOWED BY GEN FAIL. SHUT DOWN NR 2 ENGINE PER THE CHECKLIST. DECLARED AN EMERGENCY. AIRCRAFT LANDED SAFELY. R&R NR 2 STARTER/GENERAL AND C/W UNSCHEDULED STARTER/GENERATOR SPECIAL INSPECTION. ALL CHECKS NORMAL.