What was found
INSPECTION TYPE:N/A*ATB SDR FILED OPEN*EMERG DECL'D* A/C LANDED W/OUT INCIDENT* A/C OOS* T/O REC'D ENG 2 VIBRATION HI, REVERSER UNLOCK MSG, & SIGNIFICANT FEEDBACK VIBRATION IN THE RUDDER PEDALS. ENG 2 VIBRATION WAS OBSERVED TO BE AT 4.2. EMERGENCY DECLARED, RETURNED TO LOUISVILLE, LANDED WITHOUT INCIDENT. INSPECTED ENGINE PER MM 72-11-05-200-869 & FOUND NO DEFECTS REPLACED FAN CASE ACCELERROMETER & HARNESS PER MM 77-32-03-401. PERFORMED ENGINE VIBRATION SURVEY PER MM 71-02-08-700-875 & VIBRATION WELL WITHIN LIMITS PER MM 71-00-00-800-820.