As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - FL735 - EN ROUTE FROM PHL TO MCI, THE UPPER RIGHT CORNER OF CAPTAINS WINDSHIELD CRACKED AND BEGAN ARCING. FLIGHT DIVERTED TO PIT AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED THE CAPTAINS L1 WINDSHIELD. ALSO, REPLACED THE CAPTAINS WINDSHIELD HEAT CONTROLLER (P/N 231-2) AS PRECAUTIONARY. OPERATIONAL CHECK GOOD. (M)