What was found
AFTER LANDING, TOWER NOTIFIED THAT HAD A LOT OF SMOKE COMING FROM ENGINE NR 2. NO FIRE INDICATIONS IN COCKPIT, SHUT DOWN ENGINE AS A PRECAUTION. RAN EVACUATION CHECKLIST AND STARTED APU SHUTDOWN OTHER ENGINES IN PREPARATION FOR EVAC. CRASH FIRE & RESCUE CALLED THEY ADVISED THAT THEY OBSERVED NO MORE SMOKE. REPLACED THE 2 ENG FIRE BOTTLE NR 1 ASSY , GVI OF INLET AND EXHAUST REPLACED ENGINE FUEL FILTER, INSPECTED MASTER CHIP, REMOVED & REPLACED THE NR 2 ENG FUEL PUMP AND FMU COMPLETED HIGH POWER ENGINE RUNS.