As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED FUEL LEAK UNDER INSTRUMENT PANEL. DURING INVESTIGATION, FOUND THAT THE LINE FOR THE FUEL PRESSURE INDICATOR WAS LEAKING SIGNIFICANTLY INTO THE VOLTAGE REGULATOR. FLEXIBLE LINE WAS MANUFACTURED IN THE THIRD QUARTER OF 1991 AND WAS LEAKING DUE TO LOSS OF PERMEABILITY.