As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRST OFFICERS’ WINDSHIELD OUTER PANE CRACKED IN CRUISE & OBSERVED INTERNAL ARCING AT FL290. COMPLIED WITH QRH, DECLARED AN EMER & DIVERTED. CABIN PRESS REMAINED IN CONTROL & DID NOT LAND OVERWEIGHT. R & R FIRST OFFICER`S WINDSHIELD IAW AMM 56-11-01. PRESS & LEAK CHECKED GOOD.