As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE RIGHT NR 2 SLIDING WINDOW STARTED TO ARC, THEN CRACKED. TURNED OFF WINDOW HEAT RIGHT SIDE. MAINTENANCE REPLACED THE RIGHT NR 2 SLIDING WINDOW PER AMM 56-12-11-401. ALSO, FOR PRECAUTIONARY MAINTENANCE, REPLACED RIGHT WINDOW HEAT CONTROL UNIT PER AMM 30-41-11-401. OPS CHECK GOOD. AIRCRAFT OK FOR SERVICE.