What was found
"(SDR ITEM) AT FL 300 ODOR REPORTED BY F/A @ MID CABIN.-APPLIED TSM 05-50-00-810-831-A NO FUME DETECTED. APPLIED AEROTRACER UNIT , NO FUME DETECTED.AS A PRECAUTION R/R RECIRCULATION FILTER CARTRIDGE IAW AMM 21-21-41.MOC NOTIFIED.ALSO ACCOMLISHED ENG RUN IAW AMM 71-00-00, ALL NORMAL FUME NOT DETECTED."