As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2883 THE CREW REPORTED A PITOT 3 HEAT INOP MESSAGE ON EICAS WITH A BURNT ELECTRICAL SMELL COMING FROM THE F/O'S SEATING AREA. IAH MAINTENANCE INSPECTED THE AIRCRAFT, OPERATIONALLY TESTED THE PITOT HEAT ALL WITH NO DEFECTS OR ODORS FOUND, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.