What was found
F/A REPORTED SMOKE WITH AN OILY SMELL IN THE CABIN APPROX 30 MIN AFTER TAKEOFF. THE SMOKE CHECKLIST WAS ACCOMPLISHED WITH THE SMOKE AND ODOR DISSIPATING AFTER THE NR 2 ENGINE BLEED WAS SHUTOFF AND THE NR 2 PACK WAS SUPPLIED BY THE 1-2 ISOL VALVE. THE FLT WAS CONTINUED TO EWR WHERE IT LANDED WITHOUT PROBLEM. MX FOUND OIL RUNNING LEAK FROM PORT B NR 2 ENGINE DRAIN MAST, FUEL PUMP PORT. THE ACCESSORY GEARBOX CARBON SEAL FOR FUEL PUMP PAD WAS REMOVED AND REPLACED IAW MM 72-65-00, PAGE 803-805. THE FUEL PUMP CONTROL PACKAGE WAS REMOVED AND REPLACED IAW MM 73-12-01 PG 202A-215. LEAK AND OPERATIONAL CHECKS WERE PERFORMED IAW MM 71-00-00 AND ALL CHECKS WERE GOOD.