As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2997 THE CREW REPORTED THE NR 1 WINDSHIELD HEAT 1 FAILED IN CRUISE. THE CREW ELECTED TO RETURN TO MLM. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPLACED CAPTAINS WINDSHIELD TEMPERTURE CONTROLLER PER AMM 30-42-01. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.