What was found
DURING A SCHEDULED INSPECTION, EXCESS OIL WAS OBSERVED ON THE COOLING FINS ABOVE THE EXHAUST FLANGE, ATTEMPTED TO FIND SOURCE OF OIL BUT NO SOURCE WAS VISIBLE, ROCKER COVER WAS REMOVED AS WELL AS THE EXHAUST ROCKER ARM AND PUSH ROD AND TUBE, A DYE CHECK WAS DONE AND A CRACK WAS LOCATED ON THE O/B SIDE WALL OF THE EXHAUST SIDE OIL DRAIN CHANNEL UNDER THE ROCKER ARM.