As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SJU FLT 1032 - EN ROUTE CLT TO SJU. ON DESCENT INTO SJU BURNING PLASTIC FUMES IN CABIN. F/A IN REAR OF A/C COULD TASTE AND SMELL FUMES. THERE WAS NO SMOKE OR HAZE IN CABIN. PERFORMED SMOKE/FIRE/FUMES CHECKLIST, NO INCREASE OR DECREASE OF FUMES NOTED. TROUBLESHOT CABIN AIR QUALITY. NO ODOR NOTED. REPLACED HEPA FILTERS. AIRCRAFT OK FOR SERVICE.