As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT SIDE WINDOW HEAT ILLUMINATED AT FL 340 , PERFORMED QRH PROCEDURES , LIGHT REMAINED ILLUMINATED. ACFT GROUNDED. REPLACED THE NR 2 WINDOW IAW AMM 56-12-11 . R2 WINDOW ADJUSTED NR 2 WINDOW IAW AMM 56-12-11. PERFORMED PRESSURE CHECK IAW AMM 05-51-91, OPS CHECKED GOOD. NO LEAKS FOUND. PERFORMED HEAT SYSTEM CHECK IAW AMM 30-41-00, OPS CHECKED GOOD.