As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW/ATL - FLT 4630 - DURING DESCENT AT 12,800 FEET AND 280 KNOTS, THE LEFT WINDSHIELD CRACKED. CREW DECLARED AN EMERGENCY AND LANDED IN ATL WITHOUT FURTHER INCIDENT. ATL MAINTENANCE REMOVED AND REPLACED THE LEFT WINDSHIELD. OPERATIONAL AND PRESSURE CHECKS WERE GOOD AND THE AIRCRAFT WAS RELEASED FOR FURTHER SERVICE. (X)