As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT REPORTED A DIRTY SOCK SMELL DURING GRADUAL DESCENT INTO PHX FROM STL. DID NOT NOTICE ANY SMELL FROM COCKPIT AREA. COMPLIED WITH TROUBLESHOOTING IAW JOB CARD 26L00021001, 26L00021002 & 26L00021004 ENVIRONMENTAL CONTROL SYSTEM DECONTAMINATION.