As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FO WINDSHIELD LOWER HEAT BLOCK BEGAN PRODUCING SMOKE IN FLIGHT. NO FIRE. SMOKE SUBSIDED AFTER ABOUT 10 SECONDS AFTER TURNING OFF WINDHIELD HEAT / REMOVED AND REPLACED RH WINDSHIELD IAW CRJ 900 AMM 56-11-01-000/400-801-PSA. OPS CHECK AND LEAK CHECK REQUIRED. PERFORMED OP CHECK AND FUNCTION CHECK IAW CRJ AMM CH 21-31-00-910-801/802 AND CRJ AMM CH 30-41-06-710-801. OP CHECK AND FUNCTION CHECK GOOD.