As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT SIDE SLIDING WINDOW HEATING ELEMENT ARC-ED. LASTED A FEW SECONDS WITH A STRONG SMELL. TURNED WINDOW HEAT OFF; NO CBS POPPED.<[01] REPLACED LT. NO. 2 OPENABLE WINDOW IAW AMM 56-12-11 AND MT 756-12-02. REPLACED LT. SIDE WHCU BECAUSE OF ARCING WHICH OCCURRED IAW AMM 30-41-11.