What was found
TIP TANK FILLER INSTALLED IN EARLY MODEL TIP TANKS. HAS SMALL PIECES OF METAL AND FIBERGLASS MIGRATING AND CLOGGING FUEL LINES AND FILLING CARBURETOR SCREWS ON EARLY 'E' SERIES ENGINES. SUBMITTER STATED IF INSTALLED ON FUEL INJECTOR ENGINES, COULD POSSIBLY CAUSE SAME PROBLEM. FUEL STARVATION WAS PROBLEM. RECOMMEND PART 39 ACTION. AIRCRAFT WAS USING AUTOGAS.