As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PLUGGED FUEL FILTER. THE OUTSIDE MOUNTED STYLE FUEL GAUGES DISINTEGRATED USING 93 OCTANE AUTOMOBILE GASOLINE, IT MAY OR MAY NOT HAVE CONTAINED ETHANOL. THE PLASTIC TUBE SHAPED FUEL GAUGE SWELLED AND ELONGATED ABOUT 1" WHEN COMPARED TO THE ORIGINAL, UNUSED PRODUCT. THE RESIN THAT ENCASED THE CORK FLOAT WAS DISSOLVED AND IS BELIEVED TO BE THE MATERIAL FOUND IN THE FUEL FILTER.