What was found
THE OIL COOLER ADAPTER GASKET TAILED IN FLIGHT CAUSING (2) QUARTS OF OIL IN ONE HOUR TO BE PUMPED INTO THE ENGINE COWLING. THIS ENGINE IS A FACTORY REMANUFACTURED ENGINE WITH 140 HOURS SINCE REMAIN. ON INSPECTION AND DISASSEMBLY THE OIL COOLER ADAPTER BOLTS DID NOT APPEAR TO BE TORQUED ENOUGH BUT THE GASKET ITSELF WAS BRITTLE AND LEAKING. THE ENGINE AND ADAPTER SURFACE WERE FLAT AND CLEAN. THE REPLACEMENT GASKET APPEARS TO BE A BETTER QUALITY. (K)