As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT THE RIGHT B SCREEN WOULD NOT HEAT IN FLIGHT. TROUBLESHOOTING DISCOVERED THE RT B PANEL WINDSCREEN DEFECTIVE. THE DEFECTIVE WINDSCREEN WAS REMOVED & NEW WINDSCREEN WAS INSTALLED. LEAK & FUNCTIONAL CHECKS GOOD AT THIS TIME.