As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT DURING INITIAL DESCENT FL 320. INSPECTED ENGINE DEOILERS, NO LEAK. A/C INLET CLEAN. RAN ENGINES, ISOLATED BLEED SOURCES. COULD NOT DUPLICATE ODOR AT THIS TIME. CONFIRMED WITH FLIGHT CREW ON BOARD IAW TSM 05-50-00-810-831-A. A/C OK FOR SERVICE.