As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 1424 - FIRST OFFICERS SIDE WINDOW AREA BETWEEN WINDOW RAIL AND LATCHING MECHANISM KEPT ARCING EVEN AFTER THE WINDOW HEAT SWITCH WAS TURNED OFF. LANDED DFW WITHOUT INCIDENT. REPLACED FIRST OFFICERS SLIDING WINDOW. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)