As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE-GRR - FLT 3069 - THE CREW REPORTED SMOKE FROM THE F/O'S SIDE PANEL. THE AIRCRAFT RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT PACK VALVE IAW EMB120 MM 21-50-01 AND PERFORMED OPERATIONAL CHECKS IAW EMB120 MM 21-50-00, NO DEFECTS WERE NOTED. (M)