As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT TOP OF CLIMB " R SIDE WINDOW OVERHEAT ILLUMINATED" COMPLIED WITH QRH. OPS NORMAL THEREAFTER. GROUNDED - YES. ACCOMPLISHED WHC BIT PER B737-900 AMM 30-41-00 WITH NO FAULTS. CHECKED TERMINAL FOR CORROSION WITH NO FAULTS FOUND OPS CHECK GOOD.