As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT SMELLED SLIGHT BURNING PLASTIC SMELL AT ROW 20CD. REPORTED SIDEWALL TO CEILING AREA TO BE WARMER THAN USUAL. PULLED CB'S FOR WIFI & SMELL DISSIPATED BUT RETURNED IN 10 - 15 MINUTES. DECLARED EMER & FOLLOWED QRH. REMOVED RT SIDEWALL PANEL AT ROWS 19 & 20. INSPECTED WIRING FOR SIGNS OF OVERHEATING CONDITIONS NO DEFECTS NOTED. REINSTALLED SIDEWALL PANELS AT RT 19 & 20 IAW AMM 25-23-01. OK FOR SERVICE.