As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 4029 WHILE ON THE GROUND A BURNING ODOR WAS NOTICED IN THE COCKPIT. FOUND THAT AN OVERHEAD LIGHTING CIRCUIT BREAKER HAD POPPED. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPLACED OVERHEAD PANEL DIMMER NR 2 IAW EMB 145 AMM 33-12-01. THE OPERATIONAL CHECK WAS GOOD IAW EMB 145 AMM 33-12-00. THE AIRCRAFT WAS RETURNED TO SERVICE.