As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED ON TAXI, ELECTRICAL BURNING SMELL IN (THE VICINITY OF) ROW FOUR IN THE CABIN. MAINTENANCE REMOVED AND REPLACED LIGHT BALLAST AND WIRING FOR SEAT 4A AND 5A SIDEWALL LIGHTS. OPS CHECKED GOOD, NO BURNING SMELL NOTED IAW EMB145 MM NR 3321-00. AIRCRAFT RETURNED TO SERVICE.