What was found
CLE - FLT 3283 - CREW REPORTED THAT DURING CLIMB THE RIGHT PROP NP FLUCTUATES BETWEEN 1 PERCENT AND 2 PERCENT. AIRCRAFT RETURNED TO FIELD. MAINTENANCE INSPECTED THE AIRCRAFT THEN REMOVED AND REPLACED THE RIGHT PROPELLER CONTROL UNIT IAW EMB-120 MM 61-21-00. OPERATIONAL AND LEAKS CHECKS WERE GOOD IAW EMB120 MM 61-21-00. OPERATIONAL AND LEAKS CHECKS WERE GOOD IAW EMB-120MM 61-00-00. AIRCRAFT RELEASED FOR SERVICE. (M)