As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED A RIGHT WINDSHIELD HEAT CAUTION - RIGHT WINDSHIELD CRACKED. RAN QRH AND MANUALLY CONTROLLED PRESSURIZATION, HOWEVER THE NUMBERS WERE TOO HIGH IN THE CABIN. DECLARED AN EMERGENCY AND DID A QUICK DESCENT AND DIVERTED. (FLT 4668) FO: 12/28/2017 CLOSED. REMOVED AND REPLACED WINDSHIELD IAW AMM.