As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN'S WINDSHIELD HAS AN AREA OF MILKY APPEARANCE APPROX 6" X 4" IN THE CENTER OF THE WINDSHIELD. PER AMM REPLACED PILOT NR 1 WINDSHIELD. PART BORROWED FROM AIR CHINA. PCN180 -6452, PN:60B10028-5 PERFORMED WINDSHIELD HEATER SYSTEM CHECKED PER AMM AND WINDSHIELD WIPER, OPS CHECKED PER AMM. ALL CHECKED GOOD.