As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 5359784) FO #2 WINDOW SMOKES AT HEATING ELEMENT TERMINAL WHEN WINDOW HEAT TURNED ON. NO ASSOCIATED OVERHEAT WARNING. INSTALLED NO 2 OPENABLE WINDOW PER B737 AMM 56-12. REMOVED AND REPLACED RT SIDE WINDOW HEAT CONTROL UNIT M320 PER B737 AMM 30-41. REPAIRED DAMAGED WINDOW TERMINAL PER B737 SWPM CH 20.