As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXHAUST ODOR IN CABIN DURING DESCENT. R & R THE RECIRCULATION FILTERS 1 & 2 IAW AMM 21-21-41, AND REPLACED CONTAMINATED INSULATION BLANKETS IN VICINITY OF RECIRCULATION FAN INLET. PERFORMED TSM 05-50-00-810-831-A. PERFORMED IDLE CHECK IAW AMM 71-00-00-710-006, NO ODOR NOTED.