What was found
FLT 1247, LGA-TPA. BOTH AFT FA'S SAID THEY SMELLED A DIRTY SOCKS ODOR AT 7000 FT DURING DESCENT. SCRATCHY THROAT & BURNING EYES.; ACCOMPLISHED INFO NOTICE 2017-T015M REFER TSM 05-50-00-810-831-A, FOUND DIRTY SOCKS ODOR ACTIVE DURING APU BLEED ON AND PACKS 1 & 2 RUNNING . INSPECTED APU AND FOUND EVIDENCE OF OIL AT AIR INTAKE PLENUM . NO EXTRENAL FACTORS EVIDENCE OF OIL AFT DRAIN PORT TYPE 1 APU ACCOMPLISHED LEVEL B REMOVAL OF THE CONTAMINATION OF THE ENVIORMENTAAL CONTROL SYSTEM (ECS) A/C OK FOR SRVC.