As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLIGHT ODOR COMING FROM CABIN CEILING LIGHTS. FLIGHT ATTENDANT SAID WHEN DIMMED THE LIGHTS ROW 2 AND ONE LIGHT WENT FULL BRIGHT. THAT IS WHEN SMELL STARTED. NO SMOKE. REMOVED BULB AT ROW 2 AND ISSUED MEL 33-02. REMOVE AND REPLACE CARGO LIGHT BALLAST AT SEAT 4 IAW 33-31-00. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.