As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
READING LIGHT IN ROW 19-20 WENT OUT FOLLOWED BY ALL OF THE READING LIGHTS IN THE MAIN CABIN. WHILE DEPLANING PASSENGERS NOTED ELECTRICAL ODOR AT ROW 18. MAINTENANCE FOUND SHORTED TERMINAL END AT READING LIGHT SEAT 19B. COMPLIED WITH ERA 549193-14, REV O.