As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE FL350 CAPTAIN'S #1 FORWARD WINDOW OUTER PANE SHATTERED RESULTED IN WINDOW HEAT L STATUS MESSAGE AND HEAT WINDOW L EICAS MESSAGE. WINDSHIELD INSTALLATION COMPLETE PER AMM 56-11-01. WINDSHIELD HEAT CONTROLLER OPS CHECK GOOD PER B747-400 AMM TASK 30-41-00-715-025