As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED SMOKE COMING FROM LIGHT CONTROL PANEL ON F/O'S SIDE. MAINTENANCE INSPECTED BEHIND F/O'S LIGHT CONTROL PANEL AND OTHER PANELS IN THE VICINITY AND COULD NOT FIND ANY DEFECTS. CREW TAXIED AND RAN ALL SYS AND WAS UNABLE TO DUPLICATE ANY SMOKE OR OTHER DEFECTS. ACFT WAS APPROVED FOR RETURN TO SERVICE.