As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LBB - INFLIGHT DFW-LAX. CREW REPORTED RIGHT ENGINE VIBE INDICATION AT 5.0. ACCOMPLISHED SHUT DOWN OF RIGHT ENGINE (SINGLE ENGINE TIME 20 MINS). EMERGENCY DECLARED FLIGHT DIVERTED LBB LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT ENGINE AIRBORNE VIBRATION MONITOR. SYSTEM GROUND CHECK NORMAL OPERATION.