As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE - FLT 4370 - THE CREW REPORTED SMOKE IN THE CABIN AFTER TAKEOFF. THE AIRCRAFT RETURNED TO CLEVELAND WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT TEMP CONTROL VALVE AND THE LEFT TCV AND THE COMPRESSOR INLET VALVE IAW EMB-120 MM 21-60-01 AND 21-60-10. THE AIRCRAFT PASSED A TEST FLIGHT AND WAS RELEASED TO SERVICE. (M)