What was found
(CAN) AC, WHILE IN LIGHT ICING CONDITIONS, ENCOUNTERED A MALFUNCTION OF CAPTAIN'S (LT SIDE) WINDSHIELD. ENTERING ICING CONDITIONS, NORMAL MODE WAS SELECTED. CAPTAIN NOTICED DISCOLORATION IN LWR PORTION OF WINDSHIELD, VERBALIZED IT TO F/O. CAPTAIN OBSERVED DISCOLORATION SPREADING AND SELECTED WINDSHIELD HEAT SWITCH TO WARMUP, THEN TO OFF TO SUSPEND DISCOLORATION GROWTH. AT THE SAME TIME, CRACKS WERE OBSERVED DEVELOPING ALONG AND AROUND DISCOLORED AREA. CREW THEN CHANGED COURSE. UNEVENTFUL LANDING WAS EXECUTED AND MAINTENANCE STAFF PROCEEDED TO WORK ON THE AIRCRAFT. AT THIS TIME, SPARE PART PROCUREMENT AND TROUBLESHOOTING ARE ONGOING AND THE AIRCRAFT IS EXPECTED TO RETURN TO SERVICE.