What was found
DURING ACCIDENT INVESTIGATION, OIL FILTER CAP WAS NOT ATTACHED TO FILLER TANK. CAP WAS FOUND IN ENGINE COMPARTMENT. THE CHAIN AND HOOK WERE AFFIXED TO CAP. THE GASKET UNDER SIDE OF CAP WAS MISSING. THE CAP WOULD NOT LOCK OR FIT SNUGGLY TO FILLER TANK. EVIDENCE OF OIL ON TOP OF ENGINE UNDER SIDE OF TOP COWL, AND OUTSIDE OF TOP COWL, STREAKING OUT OF FILLER DOOR. TRACES OF OIL SPECS ON WINDSHIELD ALSO,