As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#769, BOS-FLL. 'POSSIBLE FUME EVENT. SMELL WAS STRONGER IN THE BACK.SMELL LIGHT BURNING; "COMPLIED WITH INFORMATION NOTICE 2017-T015K, SECTION B2. IDENTIFIED ODOR AS RESIDUAL (NO ACTIVE LEAKS) DECONTAMINATION LEVEL "B" WAS ACCOMPLISHED PER TSM: 05-50-00-810-831-A. AIRCRAFT IS OK FOR SERVICE." DUE TO HISTORY: R/R RECIRC FILTERS IAW AMM: 21-21-41.'