As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAINS L-2 WINDOW OUTER PANE SHATTERED, AKSI K SIDE OVERHEAT LIGHT ILLUMINATED SHORTLY AFTER SHATTER AND L-2 WINDOW IS EXCESSIVELY HOT COMPARED TO OTHER HEATED WINDOWS. GROUNDED - YES. DURING TROUBLE SHOOTING FOUND L/H WHCU FAIL B737-800 FIM 30-41 TASK 801. R&R B737-800 AMM 30-41-11-00-801 REMOVED AND REPLACED CAPTAINS L-2 OPENABLE WINDOW REF AMM 56-12-11 OPS CHECK GOOD WINDOW HEAT SYSTEM OPERATIONAL TEST, REF AMM 30-41-00,