What was found
DURING #2 ENGINE START, AFTER MOVING #2 START LEVER TO IDLE, RAMP REPORTED WHITE SMOKE FROM #2 ENGINE. FUEL FLOW WAS INDICATED BUT NO RISE IN EGT. ENG VALVE CLOSED LIGHT REMAINED ILLUMINATED. FUEL FLOW THEN DROPPED TO ZERO. GROUNDED - YES. REMOVED AND REPLACED RIGHT IGNITION IGNITER PLUG ON #2 ENGINE REF B737-800 AMM 74-21-02. NO DEFECTS FOUND. OPS CHECK GOOD. UPON INSPECTION OF THE TOP IGNITION EXCITER BOX FOUND WATER ON THE IGNITION LEAD. CLEANED AND DRIED PER AMM 74-11-01. REMOVED AND REPLACED TOP IGNITION EXCITER BOX REF AMM 74-11-01. OPS CHECK GOOD.