What was found
FLT#841, JFK-SAV. 'DIRTY SOCK SMELL PLUS FUME/ ODOR ON DEPARTURE OUT OF JFK AND VERY STRONG AT 1500 FEET COMING INTO SAV. EXPERIENCED THRU OUT THE CABIN INFLIGHT AND CUSTOMERS SAID VERY NOTICEABLE, ( BLEED AIR SUPPLY SYSTEMS ); PERFORMED TSM 05-50-00-810-831A ISOLATED ODOR TO APU BLEED. PERFORMED LEVEL B ECS DECONTAMINATION ON PACKS 1 AND 2 AND CABIN FILTER CHANGED REF AMM 21-21-41 AND 21-00-00-615-803A. ENG #1 BLEED GOOD. MDDR CLEARED. MX-4 UPDATED.'