As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6547 - IAD-ROA - DURING CRUISE, AIRCRAFT MADE A UNSCHEDULED LANDING AT IAD DUE TO LEFT PROP HEAT FAILED. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED LEFT PROP ASSY. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)