What was found
"DIRTY SOCKS ODOR BELOW 20,000 FT. REPORTED BY FA/A AS WELL AS IN FLIGHTDECK & FA/A-PERFORMED TSM 05-50-00-810-831-A. UNABLE TO FIND CAUSE OF CABIN ODOR, SMOKE, OR FUME WITH THE USE OF AEROTRACER. PERFORMED ENG 1+2 RUN-UP IAW AMM 71-00-00. NO ODOR DETECTED. A/C OK FOR CONTINUED SVC. CAL TOOL: NK12809T"