As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB/FUME- PERFORMED ATB DUE TO CREW REPORTS OF BURNING RUBBER SMELL. FOUND OIL BEHIND BOTH ENGINE SPINNERS. REPLACED NR 1 AND 2 ENGINE SHAFT COVER SEAL PER AMM 72-15. PERFORMED LEVEL B ECS DECONTAMINATION PER AMM 21-00-615-803-A. (LP 4395968)