As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PERSISTENT AVIONICS SMOKE INDICATION IN FLIGHT. CONTINUED TO REPEAT UNTIL SHUTDOWN, NO VISUAL OR SMELL IND OF SMOKE. MAINTENANCE REMOVED AND REPLACED AVIONICS SMOKE DETECTOR P/N ON & OFF 72-111211-000, PERFORMED REQUIRED OPS CHECKS ALL CHECKS ARE GOOD AT THIS TIME.