As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - FLIGHT ATTENDANTS REPORTED SLIGHT BURNING ODOR IN MAIN CABIN. UTILITY BUSES TURNED OFF AND SMOKE DISSIPATED. FOUND LIGHT BALLAST AT SEAT 3A WITH EVIDENCE OF ODOR AND LIGHT INOPERATIVE. REPLACED LIGHT ASSEMBLY AT SEAT 3A. SYSTEM GROUND CHECK NORMAL OPERATION.