What was found
MUFFLER HOUSING (SHELL) FRACTURED ALLOWING EXHAUST INTO AFT SECTION OF ENGINE NACELLE CAUSING CORROSION AND HOT SPOTS. SUBMITTER STATED THIS DEFECT HAS THE POTENTIAL TO CAUSE A FIRE IN THE WING OR FAILURE DUE TO CORROSION ALSO. SUBMITTER STATED THERE IS NO REQUIREMENT IN CESSNA 310 SM NR P150C FOR REMOVAL OF THE MUFFLER FOR INSPECTION DURING A 100-HOUR OR ANNUAL OR HOURLY INSPECTION. SUBMITTER RECOMMENDS AN INSPECTION OF A SCHEDULED HOURLY TYPE, INCORPORATING THE REMOVAL OF THE MUFFLER, TO ACCOMMODATE INSPECTION OF THE NACELLE AND MUFFLER INTEGRITY.