As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1589, EWR-SJU. INFLIGHT REPORTED STRONG SOCK SMELL IN AFT CABIN FAINT SMELL IN COCKPIT. OCCURED DESCENDING THRU 2000FT LOW POWER SETTING AND MAKING A TEMP ADJUSTMENT; PERFORMED LEVEL ""C"" DECONTAMINATION OF EVIROMENTAL CONTROL SYSTEM (ECS) PER AMM 21-00-00-615-804-A. LEAK AND OPS TEST PERFORMED NO SMELL OR FAULTS.