What was found
(AIRCRAFT GROUNDED) DIRTY SOX SMELL ON FINAL DESCENT. COCKPIT / CABIN / PERFORMED TROUBLESHOOTING OF THE ODOR EVENT PER LEVEL 1 TASK CARD A32X- 21-000-001. THE SMELL WAS REPRODUCED ON BOTH PACKS WITH THE APU RUNNING AND ENG 2 RUNNING. AIRCRAFT NEEDS TO BE FERRIED OUT. LEVEL 2 TASK CARD NEEDS TO BE PERFORMED BEFORE REVENUE FLIGHT TRACKING ON M313 # 214878. SEE WO #524606 FOR ALL WORK ACCOMPLISHED. APU REPLACED IAW WO # 524606. OPS CHECK + LEAK CHECK GOOD.