As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT, SMOKE IN COCKPIT WITH BURNING RUBBER SMELL, SMOKE VISIBLE TO THE EYE. DECLARED EMERGENCY. C/W APPLICABLE POM. FOUND LT R-W T/O SWTCH LIGHT ASSY AND TERMINAL WIRE LUG BURNT AND MELTED. REPLACED WHOLE PANEL ASSY, OPS CKS GOOD.