As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONIC SMOKE WARNING ILLUMINATED AFTER TAKEOFF. NO SECONDARY INDICATIONS OF SMOKE OR FIRE NOTED, ALL EQUIPMENT FUNCTIONED NORMALLY. FLIGHT RETURNED TO DFW. PERFORMED INSPECTION OF AVIONICS RACK. NO SMELL OR EVIDENCE SMOKE OR FIRE DAMAGE. REMOVED AND REPLACED AVIONICS SMOKE DETECTOR IAW EMB AMM 26-13-05, OPERATIONAL CHECK GOOD, RETURNED AIRCRAFT TO SERVICE