As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABOUT 3000 FT DURING APPROACH DETECTED FUMES. TURNED OFF PACK 1 AND CLOSED CROSSBLEED. IT SEEMED TO ISOLATE THE MUSTY OIL ODOR. ONLY NOTICED IN COCKPIT.PERFORMED DECONTAMINATION OF THE ENVIRONMENT CONTROL SYSTEM IAW AMM 21-00-615-002 NO EVIDENCE OF ODOR AT THIS TIME.PERFORMED NR 1 AND 2 ENGINE RUN UPS IAW AMM 71-00-00. NO ODOR AT THIS TIME. AIRCRAFT IS OK FOR CONTINUED SERVICE.