As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) A/C RETURN TO GATE DUE SMOKING LIGHT BULB AT 18B READING LIGHT BULB AND LENS A/C 809 DEFECT#F26137 12/20/2010 DEFECT DESCRIPTION: GUEST IN 18B TURNED ON READING LIGHT, GUEST BEHIND THEM NOTICED SMOKE COMING OUT OF THE SOCKET. RESOLUTION DESCRIPTION: 18B READING LIGHT BULB AND LENS REPLACED IAW MM 33-18-00. NO FURTHER ISSUES WITH SYSTEM.