As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#1903, JFK-SJU. 'STRONG ODOR DURING THE DESCENT LAST 25 MINUTES OF THE FLIGHT; COMPLIED WITH INFORMATION NOTICE 2017-T015J, SECTION B2. TYPE 8 ODOR. PERFORMED LAVEL A DECONTAMINATION PER TSM 05-50-00-810-831A. ENG RUN ON BOTH ENG INCLUDING APU ACCOMPLISHED WITH NO ODOR PRESENT ON EACH BLEED APPLICATION. APU WAS FOUND CLEAN. A/C IS GOOD FOR SVC. HEPA FILTERS REPLACED.'