As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL QUANTITY TRANSMITTER REMOVED TO REPLACE LEAKING BASE GASKET. FOUND COMPOSITE FLOAT ON TRANSMITTER ARM WAS DETERIORATED DUE TO CONTACT WITH THE TOP OF FUEL TANK WHEN FULL. APPROXIMATELY 1/4 INCH OF FLOAT DETERIORATED ON ONE CORNER. SUBSEQUENTLY FOUND FINE BLACK RESIDUE IN FUEL STRAINER. TRANSMITTER WAS INSTALLED PROPERLY AND NO ADJUSTMENT PROVISIONS ALLOWED.