What was found
Aircraft 961 on flight 5152 from Charlotte to Lewisburg. After take-off pilot reported the number two engine prop governor will not hold set RPM and makes erratic & rapid changes between 99 to 101.5%. Aircraft returned to Charlotte and landed with no other problems. No in-flight emergency was declared. Maintenance removed and replaced the number two Prop Governor. A test flight was flown and ops checked good Aircraft was returned to service.