As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#1133, MCO-SJU. DESCENDING THROUGH 3000 INFLIGHT DETECTED DIRTY SOCK SMELL; ACCOMPLISHED INFO. NOTICE 2017-T015J C/W PACK BURN ON BOTH SIDES NO LEAKS FOUNDAT THIS TIME. PERFORMED REMOVAL AND REPLACEMENT OF THE RECIRCULATING FILTER ( EPA ) AND SECURED IAW TSM 05-50-00-810-831-A. RAN BOTH ENGINES, NO ODOR PRESENT. ACFT OKAY TO CONTINUE FLIGHT.