As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE ALTITUDE FL340, THE LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED, AFTER COMPLYING WITH THE OVERHEAT QRH PROCEDURE, THE LIGHT REMAINED EXTINGUISHED. ACFT GROUNDED. MOVED TAP FROM NR 1 TO 2 IAW AMM 30-41-21-000-801. REMOVED AND REPLACED THE CAPTAIN'S NR 2 SLIDING WINDOW IAW AMM 56-12-11. ADJUSTED THE WINDOW IAW AMM 56-12-11. OPS CHECKED GOOD.