As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3745 -FUMES/DE- DECLARED AN EMERGENCY ON APPROACH DUE TO A DIRTY SOCK SMELL DURING DESCENT INTO FLL. CREW DONNED O2 MASKS. CORRECTIVE ACTION: FOUND ODOR WITH PACKS OPERATING ON APU. FOUND LUBE FILTER BYPASS INDICATOR POPPED AND SMALL AMOUNT OF METAL ON MCD.REPLACED RECIRC FILTERS PER B737 AMM 21-25 AND REPLACED APU REF LOG PAGE 5854027.