As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, THERE WAS SMOKE COMING FROM THE LEFT CIRCUIT PANEL. AN EMERGENCY DESCENT WAS PERFORMED AND ELECTRICAL FIRE OR SMOKE CHECKLIST G1 WAS INITIATED AND COMPLETED. INSPECTED THE AIRCRAFT FOR SOURCE OF SMOKE AND FOUND AISLE LIGHTS ON LEFT SIDE MELTED AND BURNED. REMOVED ALL LEFT SIDE CABIN AISLE LIGHTS AND INSTALLED NEW LED AISLE LIGHT ASSEMBLIES. OPS CHECKED GOOD.