As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CMH - AIR TURN BACK - FLT 0747 - AFTER TAKEOFF FROM CMH EN ROUTE FOR LAS THE FIRST OFFICERS WINDSHIELD CRACKED, TURNED BACK TO CMH. MAINTENANCE REMOVED AND REPLACED THE FIRST OFFICERS WINDSHIELD IAW AMM 56-11-11, BITE TEST OF WINDOW HEAT COMPUTER WAS GOOD. VENDOR DID NOT PERFORM FAILURE ANALYSIS OF WINDSHIELD.