As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AT 25,000 FT AND 220 KNOTS VERY BRIGHT ARCING ON FIRST OFFICERÏ¿½S FORWARD WINDSCREEN FOLLOWED BY EXTERIOR PANE CRACKING. EMERGENCY DECLARED; FLIGHT LANDED SAFELY AT MIA. MAINTENANCE REPLACED FIRST OFFICERÏ¿½S WINDSHIELD PER JOB CARD 08L21056004.