What was found
(CAN) DURING INSPECTION FERROUS AND NON-FERROUS METAL WAS FOUND IN THE OIL FILTER. CAMSHAFT LOBES #2 EXHAUST AND #5 AND #6 INTAKE AND CORRESPONDING TAPPET BODIES STARTING TO FAIL FROM SPALLING. REAR SECTION OF FRONT MAIN BEARING OVERHEATED WITH SURFACE MATERIAL MELTED, ROLLING AND FLAKING OFF THE BACKING. THESE FAILURES ARE NORMALLY ASSOCIATED WITH LACK OF LUBRICATION. AVCO LYCOMING RECOMMENDS AN OIL ADDITIVE BE ADDED.