As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG NASTY, DIRTY FUME ODOR WHEN DESCENT INITIATED THROUGH LANDING. ODOR IN COCKPIT AND CABIN. WAS NOT AS STRONG WHEN PACK 1 TURNED OFF. PERFORMED GVI INSPECTION OF THE APU COMPARTMENT IAW AMM 49-90-00-600-004-A, NO LEAKS FOUND. OPEN ENGINE NR 1 FAN COWL IAW AMM 71-13-00-010-010-A/410-010-A. TO CHECK FOR ANY LEAKS. NO LEAKS FOUND, CLOSED ENGINE FAN COWL.