As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 5438983) FO FORWARD WINDOW HAS SMALL ELECTRICAL ARC COMING FROM UPPER WINDOW HEAT DISTRIBUTION STRIP. REMOVED FO #1 WINDOW PER B737 AMM 56-11-11-000-801 AND COMPLETED AMM 56-11-11-400-801 STEP A THRU STEP H (8) FOR INSTALLATION. C/W CABIN PRESSURE LEAK CHECK IAW B737 AMM 05-51. CHECK GOOD. WORK COMPLETED OPS CHECK OK. ALSO REPLACED WHCU PER AMM 30-41.