As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: LEFT SIDE WINDOW DELAMINATED. LEFT SIDE WINDOW HEAT OVERHEAT LIGHT AT FLIGHT LEVEL 320. TURNED OFF FOR 5 MIN PER QUICK REFERENCE HANDBOOK, LIGHT CAME BACK ON THEN TURNED OFF FOR DURATION OF FLIGHT. L2 WINDOW REMOVED AND REPLACED PER WORK CARD 08L21056001.