As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED BURNING SMELL IN FWD CABIN AND ELECTRICAL ODOR AS WELL. EWR MX FOUND POOR GROUND AT GS 8008DC. THEN AREA WAS CLEANED AND GROUND RESECURED. MX ALSO REMOVED AND REPLACED CABIN LIGHT CONTROL MODULE. MX PERFORMED OPERATIONAL CHECK SUCCESSFULLY. AC WAS APPROVED TO RETURN TO SERVICE. (K)