As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 5645 MUSTY SMELL (SUSPECTED FROM PACKS/ AC SYSTEM) ON DESCENT. CORRECTIVE ACTION: PERFORM CHK PER B757 FIM 21-00-01/301 NO CONTAMINATION FOUND. PERFORM ENGINE OIL SYSTEM CHK 79-00-00 NO LEAKS FOUND. ALL REQUIREMENTS AND CHECKLIST COMPLETE. (5593188)