As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT AT 25,500 FEET, THE FIRST OFFICER'S NR 3 WINDOW OUTER PANE DELAMINATED AND SEPARATED FROM THE MIDDLE PANE. AIRCRAFT RETURNED TO BOS AND ACCOMPLISHED AN UNEVENTFUL OVERWEIGHT LANDING. MAINTENANCE REPLACED THE FIRST OFFICER'S NR 3 WINDOW.