What was found
FLT#1524, LAX-JFK. (ETOPS) 'FA'S # 3 AND 4 REPORTED A "DIRTY SOCK" SMELL AT TOUCHDOWN. AFT CABIN, APU WAS OFF, BLEED AIR SUPPLIED BY ENGINES 1 AND 2; COMPLIED WITH INFORMATION NOTICE 2017-T015 SECTION B2 DECONTAMINATION LEVEL A WAS ACCOMPLISHED PER TSM 05-50-00-810-831-A AIRCRAFT IS OK FOR SERVICE.'