As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENROUTE F/O WINDSHIELD WAS ARCING. FOLLOWED BY A "LEVEL 1 WSHLD HEAT FAIL" MESSAGE. RAN QRH CHECK LED US TO "WINDSHIELD CRACKED OR ARCING" CHECKLIST ON PAGE 3.13. PULLED CB Z-24. LOOKS LIKE A HAIRLINE CRACK ON OUTER PANE - UPPER PORTION OF WINDSHIELD. MAINTENANCE REPLACED F/O SIDE WINDOW REF B717 AMM 56-11-02. SPEED TAPE APPLIED TO ALLOW CURE ON SEALANT SEE LP 9992705. (LP #9992704)