As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF PILOT NOTICED THAT THE NR 2 ENGINE WAS IN AN OVERSPEED CONDITION. PILOT ABORTED TAKEOFF AND RETURNED TO MAINT HANGAR, MX FOUND THAT THE PROP GOVENOR WAS OUT OFF RIG. ADJUSTMENT WAS MADE AND ENGINE OPS CHECKED NORMAL. NOTE MX HAD WORKED ON SYSTEM THAT AFFECTED THE ENGINE SPEED EARLIER THAT MORNING.