As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7882 - STL - PRIOR TO PUSHBACK, CREW REPORTED A BURNING SMELL IN THE COCKPIT WITH VISIBLE SMOKE FROM THE LIGHT FIXTURE AT SEAT 1A. MAINTENANCE INSPECTED AND FOUND THAT THE SIDEWALL LIGHT SOCKET WAS DEFECTIVE. THE LIGHT BULB WAS REMOVED AND THE LIGHT FIXTURE WAS DEFERRED.