As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R2 WINDOW HEAT OVERHEAT LIGHT ILLUMINATED. PERFORMED QRH PROCEDURE. OVERHEAT LIGHT REMAINED ILLUMINATED. GROUNDED - YES. PERFORMED BIT PROCEDURE PER FIM 30-41 TASK 801. NO CURRENT FAULTS FOUND. OPS CHECK R2 WINDOW HEAT, OPS CHECK NORMAL. CANNOT DUPLICATE DISCREPANCY. THIS CLEARS MEL 30-11E.