As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WINDOW HEAT EICAS MESSAGE. PERFORMED CONTINUITY CHECK FROM D4294J TO D1922, FOUND OPEN WIRE, BSD SPLICE ON WIRE W624-209R-24. IAW WDM 30-41-12. SPLICED THE WIRE IAW SWPM 20-30-12. PERFORMED OPS CHECK OF L2 WINDOW HEAT IAW AMM 30-41-00, OPS CHECKED GOOD. NO DEFECTS NOTED.