What was found
FLT#2637, JFK-STI. CLIMBING OUT AFT PA REPORTED AN OILY SMELL THAT STARTED ON T/O RAN ODOR CHECKLIST. ISOLATION UNSUCCESSFUL. JUMPSEAT CA WENT TO INVESTIGATE AND SMELLED AND INTERMITTENT KEPT OILY SMELL IN THE AFT GALLEY; C/W INFO NOTICE 2017 T055K PER DECISION 3 SUSPECT APU ROOT CAUSE. ACCOMPLISHED PACK BURN WITH GROUND AIR START, RAN ENGINES , ENG 1 TO PACK 1 AND ENG # 2 TO PACK # 2 INDEPENTLY NO CABIN ODOR.'