As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 851, BOS-MCO. INFLIGHT REPOERTED A CHAMICAL ODOR WAS BURNING EYES, PILOTS DID NOT PERCEIVE ANY ODOR. ODOR WAS STRONGER IN THE FRONT OF THE AIRCRAFT AND DISSIPATED WITH THE PACK OFF.; COMPLIED WITH INFORMATION NOTICE 2017-T015 STEP 1 ISOLATED FAULT TO TYPE 10 EXTERNAL GROUND POLLUTANT PER TSM 05-50-00-810-085-BTSM 05-50-00-810-810-085-. AIRCRAFT IS OK FOR SERVICE.