As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI GOT MASTER CAUTION FOR OVERHEAT ON R-2 WINDOW. RAN CHECKLIST. WINDOW STILL VERY HOT TO THE TOUCH NO OVERHEAT LIGHT. FOUND .1250 CUP WATER IN WINDOW TRACK. ACFT GROUNDED. R & R RT SIDE WINDOW HEAT CONTROL UNIT. OPS GOOD REF AMM 30-41-11-000-801. DRIED WATER ON WINDOW TRACK. OHMS CHECK GOOD 30-41-12-2, TABLE 1 SIDE.