As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT 3992 THE CREW REPORTED A HEAVY BURNING ODOR IN THE COCKPIT AND CABIN FOLLOWED BY SMOKE DURING TAKEOFF AND AFTER LANDING. RECEIVED A PACK NR 1 OVERHEAT MESSAGE. THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE NR 1 AIR CYCLE MACHINE. OPERATIONAL CHECKS WERE GOOD. THE AIRCRAFT WAS RELEASED FOR SERVICE.