As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED FIRST OFFICERS FORWARD WINDOW CRACKED AT THE LOWER LEFT HAND CORNER. AIRCRAFT RETURNED TO LAS AND LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE FIRST OFFICERS WINDOW IAW MM 56-10-02. LEAK AND OPERATIONAL CHECK OF WINDOW HEAT GOOD. AIRCRAFT RETURNED TO SERVICE.