What was found
FUME EVENT ON ARRIVAAL DESCENTING THROUGH =1000FT. TURNED OFF PACK 1 DICONNECTED FROM FLIGHT DECK ( PACKS A320 WITH MOD 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) - FAULT CAUTIONS ASSOCIATED WITH OPERATIVE SIDE NOT DISPLAYED )-OPERATED PACK # 1 TO FULL HOT FOR 30 MIN AND FULL COLD FOR 30 MIN IAW AMM 21-63-00. OPERATED AEROTRACER SNIFFER, NOTHING WAS DETECTED ON SNIFFER NK10519T AT THIS TIME THIS CLEARS DMI # 255683102 PLACARD REMOVED MOC NOTIFIED