As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE A/C LOCATED GATE A-11 ATL AT 0530 SMELLED SMOKE AND LIGHTING EXTINGUISHED RT SIDE OF CABIN. FOUND CANNON PLUG ROW 17DE BURNT AT OVHD LIGHT AND CEILING PANEL CHARRED. CANNON PULG P1-21-1 AND RECEPTACLE R-12105 WERE REPLACED, OPERATION NORMAL. PLUG AND RECEPTACLE MFG P/N MS3126F1415P AND M3124E14-15S.