As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT9180 EN ROUTE FROM BNA TO CLT, THE FIRST OFFICER'S R1 WINDSHIELD BEGAN ARCING IN THE UPPER LEFT CORNER. WINDOW WENT COLD. FLIGHT CONTINUED AND LANDED WITHOUT FURTHER INCIDENT AT CLT. NO EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED THE FIRST OFFICER'S R1 WINDSHIELD PER JOB CARD J356-11-01. OPERATIONAL CHECK GOOD.