What was found
FUME EVENT PASSING 3500 FT IN DES, DIRTY SOCKS/ MUSTY SMELL NOTED IN COCKPIT O2 MASKS USED, PACK 1 TURNED OFF + X-BLEED SHUT, SMELL WAS NOTICED IN COCKPIT AFTER LANDING AFT FA'S B+C ALSO SMELT THE SAME, BUT LESS THAN COCKPIT-R/R ENG #1 AND #2 DEOILER CASING IAW AMM 72-60-31. MM 74876 PERFORMED PACK BURN OF PACK 1 & 2 IAW AMM 21-00-00 NO SMELLS NOTED NO CONTAMINATION NOTED JT 74532