What was found
FLT#1179, JFK-MBJ. 'REPEAT ITEM: 3430029 3466939 DIRTY SOCK SMELL UPON ARRIVAL WHEN APU SUPPLYING BLEED AIR. THROUGHOUT CABIN AND COCKPIT. SMELL INITIATED WHEN APU BLEED SELECTED ON DURING TAXI IN. THE CABIN SMELL WAS REPORTED STRONG AT THIS POINT AND GETTING STRONGER TILL APU BLEED SELECTED OFF. THEN SMELL BEGINS TO DISSIPATE. IN AFT GALLEY SMELL STRONGER ON THE RIGHT SIDE THAN LEFT. ( APU SYSTEM )' (SUPPLEMENTAL INFORMATION TO FOLLOW)