As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LEFT PROPELLER HEAT FAILED, DURING THE TAXI OUT FOR TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED AND CLEANED THE LEFT PROPELLER BRUSH BLOCK, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 30-61-05. OPERATION CHECKS WERE COMPLETED AND, THE AIRCRAFT WAS RETURNED TO SERVICE.