As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT DETECTED IN CABIN ON DESCENT-FOLLOWED TSM 05-50-00-810-831-1. FOUND APU OVERSERVICED TYPE 3 & DRAIN OIL AS PER AMM 49-90-00 TO PROPER LEVEL, ALSO REF. LOG ITEMS 3510219-1 & 2 FOR RECIRC FILTERS, R/R AND ENG IDLE RUN. NO DEFECTS AT THIS TIME.