What was found
FUME EVENT DESCENDING THROUGH FL 220AT IDLE FA REPORTED STRONG DIRTY SOCK SMELL AFT CABIN PACK 2 ISOLATED SMELL DISSIPATED ( PACKS WITH MOD 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) - AT OR BELOW FL 370 )-ACCOMPLISHED DECONTAMINATION OF THE ENVIRONMENTTAL CONTROL SYSTEM WHEN THE TEMPERATURE IS BELOW 24 DEG C. (APU) IAW AMM 21-00-00-615-001-A. OPS CHECK GOOD, LEAK CHECK GOOD. NO CABIN ODOR AT THIS TIME. THIS CLEARS DMI 241483501. MOC NOTIFED. PLACARD REMOVED.