As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THE OVERHEAD LIGHT AT ROW 31D WAS EMITTING SMOKE FROM BALLAST. F/A THEN TURNED OFF THE OVERHEAD LIGHTS. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MX FOUND LIGHT SOCKET MELTED AT 32DE. BULB WAS REMOVED AND FORWARDED TO MCO/PLACARD 33-00-02.