As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER PRIMING THE ENGINE, IT WAS NOTED THAT THE AUX FUEL PUMP WOULD NOT SHUT OFF. THE TROUBLE WAS TRACED TO THE CONTROL RELAY. THE INTERNAL POINTS IN THE RELAY HAD STUCK TOGETHER AND WERE KEEPING THE CIRCUIT CLOSED. THE RELAY WAS REPLACED, AND NO FURTHER DEFECTS WERE FOUND.