As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 924, STI-BOS. AIRCRAFT ENVIRONMENTAL ODOR NOTICED AGAIN DURING DESCENT SIMILAR TO A DIRTY SOCK SMELL IN THE MID AND FORWARD PART OF THE CABIN; FOUND APU OIL LEAK ,APU REPLACED APU ITEM 2. PERFORMED DECONTAMINATION OF ENVIRONMENTAL CONTROL SYSTEM PER INFO NOTE 2017TO15D, PERFORMED PACK BURN CK OK.