As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 WINDOW HEAT FAILED EN ROUTE. TURNED OFF AND BACK ON SEVERAL TIMES BUT WINDOW HEAT CONTINUED TO FAIL. CHECKED/RESET BOTH L1 AC AND DC CONTROL PER MOCC. NO HELP. WINDOW VERY COLD. RELEASED FOR SERVICE PER MEL/CDL: 30-15-A CATEGORY: C EXPIRATION: 07NOV08 "MEL 30-15-A: L1 WINDOW HEAT, INOP. ACFT RESTRICTED FROM OPERATING INTO ICING CONDITIONS. DO NOT EXCEED 250 KIAS BELOW 10,000 MSL."