What was found
POSSIBLE FUME EVENTWET SOCKS SMELL COMING THROUGH THE VENTS WHILE DECENDING THROUGH 4000 RAN PACKS WITH NO NOTABLE SMELLS FLIGHT DECK OR CABIN. PERFORMED INSPECTION CHECK AS PER AMM TASK 05-51-10-200-801-C1, FORM 46.6020 WAS FILLED OUT BY THE FLIGHT CREW. THEN PERFORMED TSM 05-50-00-810-831-A0, IDENTIFICATION OF THE CAUSE FOR CABIN ODOR. RAN ENGINES AND BLEEDS WITH PACKS ON TO DETERMINE NO CABIN ODOR WAS PRESENT IN THE FLIGHT DECK AND CABIN.