As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK SMELL IN CABIN AT FL390 WHILE FLYING THRU MED. TURBULANCE. TURNED OFF PACK 2 + FUMES DISSIPATED. THEN FUMES AGAIN IN COCKPIT + CABIN ON APPROACH -PERFUMED TSM 05-50-00-810-931A . CHECKED DEOILER CASING FOUND NO EVIDENCE OF OIL LEAK IN BOTH #1 & #2 ENGINES DISSASSEMBLE TUBES FOR CONDENSORS IN BOTH PACK 1 & 2 . CONT LOG 2602852-1