What was found
"DIRTY SOCK" SMELL FUME EVENT JUST PRIOR TO LANDING- 8000FT. 210 KTS, LOW THRUST. TURNING PACK 1 OFF IMMEDIATELY CLEARED THE ODOR.-PERFORMED TSM 21-00-00-810-802-A AND TSM 05-50-00-810-831. PERFORMED ENG 1 AND ENG 2 RUNS IAW AMM 71-00-00. NO DIRTY SOCK SMELL NOTED. PERFORMED OPS TEST OF APU IAW AMM 49-00-00. RAN PACK 1 AND PACK 2 ISOLATED. NO SMELL NOTED DURING AND OPERATION. NO FURTHER DEFECTS NOTED. A/C OKAY FOR CONTINUED SERVICE.