As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3209 - THE CREW REPORTED SMOKE AND FUMES AROUND ROW 7 AND 8A. THE CREW DECLARED AN EMERGENCY INTO MLU AND LANDED WITHOUT INCIDENT. REMOVED AND REPLACED PRINTER CIRCUIT BOARDS AT ROWS 7 AND 8A AS PER EMB AMM 33-24-04. OPERATIONAL CHECKS GOOD. NO FURTHER DEFECTS FOUND. AIRCRAFT RETURNED TO SERVICE.