As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CALIBRATING THE FUEL QUANTITY SYSTEM THE LT FUEL GAUGE WOULD SHOW AN INCREASE IN QUANTITY THEN START DECREASING. WHILE TROUBLESHOOTING THE LT TANK FUEL QUANTITY SENDER, FOUND 2 CRACKS APPROXIMATELY 1 INCH LONG IN THE BRASS FLOAT.