As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT AFT EMERGENCY EXIT LOWER DOOR SILL HEATER HAS PHYSICAL BURNING EVIDENCE AROUND HEATER. GROUNDED - YES. REPLACED LEFT AFT EMERGENCY EXIT DOOR LOWER SILL ASSY. OP CHECK GOOD IAW AMM 21-45-00. DURING OP CHECK NO EVIDENCE OF OVERHEAT WITH NEW CLOSEOUT ASSY.