As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING THROUGH NFL220 AFTER TAKEOFF LEFT SIDE WINDOW OVERHEAT ILLUMINATED. AFTER 5 MINUTES. VIA QRH, OVERHEAT CAUTION LIGHT CAME ON FOLLOWING THE 5 MINS OFF. TURNED SWITCH OFF REST OF FLIGHT AND COMPLIED WITH QRH. ACFT GROUNDED. REMOVED L2 WINDOW IAW AMM 56-21-11. MOVED LEFT SLIDING WINDOW HEAT WIRE TO CORRECT TERMINAL FOR THE NEW WINDOW, IAW AMM 56-12-11-400-801 AND WDM 30-41-12. INSTALLED A NEW L2 WINDOW IAW AMM 56-12-11-400-801. OPS TESTED GOOD.