As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 3214 - RECEIVED AVIONICS SMOKE WARNING ON THE CENTRAL WARNING PANEL DURING DESCENT WITH NO VISIBLE SMOKE OR NO SMOKE SMELL. THE LIGHT WENT OUT AFTER LANDING. PERFORMED GENERAL VISUAL OF AVIONICS COMPARTMENT WITH NO SIGNS OF BURNING OR ANY UNUSUAL SMELL. REPLACED AVIONICS SMOKE DETECTOR. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)