As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT DURING DESCENT. STRONGEST ON THE BACK OF A/C. PERFORMED ELIMINATION OF ODOR/FUMES PROC. SMELL STILL NOTICEABLE-R+R DEOLER CASING SEAL ASSY IAW AMM 72-60-31 & PERFORMED TSM 05-50-00 FOR IDENTIFICATION OF THE CAUSE OF CABIN ODOR, SMOKE FUME & NO SMELL NOTED AT THIS TIME( SEALS REPLACED AT ENG # 1 & ENG # 2)