What was found
CLE - FLT 3096 - CREW REPORTED THAT ON TAKEOFF, THE RIGHT ENGINE SURGED ABOUT 100 PERCENT AND THEN AUTOFEATHEREDTO 40 PERCENT. THE CREW PERFORMED A PRECAUTIONARY ENGINE SHUTDOWN. MAINTENANCE INSPECTED AIRCRAFT AND REMOVED AND REPLACED THE RIGHT ENGINE TORQUE SIGNAL CONDITIONING UNIT, MAINTENANCE ALSO REMOVED AND REPLACED THE LEFT ENGINE TORQUE SIGNAL CONDITIONING UNIT AS A PRECAUTION. ALL WORK WAS PERFORMED IAW EMB-120 MM 77-11-01. OPERATIONAL CHECKS WERE GOOD, AIRCRAFT RETURNED TO SERVICE. LEFT ENGINE, T.S.C.U. P/N 30005-0000-52, S/N 1732. (X)