As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 9811, CREW REPORTED CABIN ODOR DURING TAKEOFF IN COCKPIT. ODOR DISAPPEARED DURING CLIMB. ODOR RE-EXPERIENCED ON APPROACH BELOW 7000 MSL. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED LEFT ENGINE ZERO CARBON SEAL IAW EMB 145 AMM 72-25-25. AIRCRAFT RETURNED TO SERVICE.