What was found
F/A`S IN THE REAR OF THE AIRCRAFT SMELLED AN "ACRID ELECTRICAL SMELL" DURING FINAL APPROACH. SMELL PERMEATED TO THE FRONT OF THE A/C CABIN & THEN DISSIPATED. NO SMOKE WAS EVER SEEN. /W WORK CARD 0550-2002 TROUBLESHOOT ODOR TYPE 9 THROUGHOUT THE CABIN. COULDN`T DUPLICATE SMELL COMPLETED WC 0550-2002 UP TO STEP 19 (322332) COMPLETED STEPS 19 AND 20, W/C 0550-2002 COMPLETE. RAN PACKS WITH APU AND EACH ENGINE AT IDLE. NO ODOR THROUGHOUT CABIN. CONTACTED MCC AND THIS COMPLETES NO GO ODI PREVENTION. (LP# 9404498)