As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, A LEFT HAND PROPELLER HEAT FAIL WARNING MESSAGE ILLUMINATED. THE AIRCRAFT RETURNED TO THE FIELD (PIT) AND LANDED SAFELY. MAINTENANCE INSPECTED AND CLEANED THE LEFT HAND PROPELLER BRUSH BLOCK ASSEMBLY, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 30-61-05. OPERATIONAL CHECKS WERE COMPLETED AND THE AIRCRAFT WAS RETURNED TO SERVICE.