As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLIGHT ODOR OF BURNING RUBBER AND OIL ALONG SEAT ROW 22. RUBBER SMELL STRONGER THAN THE OIL. CANNOT SMELL IT AT ROWS 21 OR 23. *S/D* FOUND DIRTY COALESCER BAGS, EVIDENCE OF OIL DEPOSITS ON BAG. REPLACED BOTH PACKS WATER SEPARATOR BAGS.