As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R1 WINDOW OVERHEAT LIGHT ON. ACFT GROUNDED. RESET THE SYSTEM AND PERFORMED WINDOW HEAT SYSTEM OPERATIONAL TEST IAW AMM 30-41-00-710-801. R1 WINDOW OVERHEAT LIGHT EXTENGUISHED. TESTED MULTIPLE TIMES, LIGHT REMAINED OUT. NO OTHER DEFECTS WITH SYSTEM NOTED.