What was found
FLT#399,LGA-MCO."FUMES EVENT DESCENDING THROUGH 5000 FT. NOTICED IN COCKPIT,FWD LAV AREA,AND STRONGEST AT AFT F/A JUMPSEAT;AS PRECAUTIONARY OPERATED BOTH ENGINES WITH PACKS BLD AND APU BLEED ISOLATED EACH INDIVIDUALLY NO ODOR NOTED.COMPLIED WITH INFO NOTICE 2017-T015 SECTION A ISOLATED FAULT TO TYPE 10 A 1 C PER TSM 05-50-00-810-085 B TSM 05-50-00-810-085D AIRCRAFT IS OK FOR SERVICE.'(SUPPLEMENTAL DUE TO DIFFICULTY DATE)