What was found
CLE - FLT 4101 - CREW REPORTED THAT WHILE IN CRUISE FLIGHT, THE NR 2 ADC CAUSED NUMEROUS PROBLEMS WITH AIRSPEED AND ALTITUDE. THE CREW ALSO HAD THE NR 1 ENGINE CONTROL A/B FAIL AND THE NR 2 ENGINE B CONTROL FAIL, WHICH WOULD NOT RESET. AIRCRAFT DIVERTED INTO CLE WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 2 ADC IAW EMB-145 MM 34-13-00, 34-15-00 AND 34-15-01. OPERATIONAL CHECKS WERE SATISFACTORY. AIRCRAFT RELEASED FOR SERVICE. (M)