As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKEOFF CREW NOTICED NR 2 BETA LIGHT ILLUMINATED AND PROP RPM ERRATIC THE CREW ELECTED TO SHUT-DOWN NR 2 ENG. AND RETURN TO BASE FOR MAINTENANCE. BRUSH BLOCK WAS CHANGED ENG. WAS GROUND RUN AND FOUND SERVICABLE. (TC NR 20060814003)