What was found
ALL FORWARD AND AFT F/A'S REPORT STRONG SMELL OF FECES IN ENTIRE CABIN FROM 10000 FT ON DECENT UNTIL ENGINES SHUTDOWN AT PARKING THEN THE SMELL STOPPED. NO SMELL IN COCKPIT. SUSPECT BLEED 2/PACK 2. SEE ENCLOSED AIR QUALITY REPROTING FORM.-PERFORMED TSM 05-50-00-810-831. PERFOMED ENGINE IDLE RUN AND ISOLATED BOTH PACKS 1 AND 2 AND BLEED 1 AND 2 . USED AEROTRACER NO ODOR DETECTED AT THIS TIME. COULD NOT DUPLICATE SMELL. OK FOR SERVICE.