As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING ODOR FROM MID CABIN IMMEDIATELY AFTER TAKE OFF. PERFORMED TASK 05-51-58-910-801C1. FOUND BOTH ENGINE OILS OVER-SERVICED. REPLACED BOTH RECIRCULATION AIR FILTER & RT PACK CAT CONVERTER REF AMM 21-25-02 & AMP; 21-52-22. DOOR HEATERS CHECKED 21-45-06. NO SMOKE OR ODOR NOTED DURING HIGH POWER RUN. OPS CHECKED GOOD.