As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED BOOST PUMP FOR WARRANTY CREDIT WITH A CUSTOMER COMPLAINT OF (BREAKER POPS WHEN FUEL PUMP IS TURNED ON). PRELIMINARY INSPECTION OF THE PUMP REVEALED FOREIGN MATERIAL IN THE INLET PORT. FURTHER INSPECTION OF THE PUMP REVEALED THE FOREIGN MATERIAL TRIED TO PASS THROUGH THE PUMP AND HAD LOCKED THE ROTOR IN THE INSERT. THIS WOULD CAUSE THE PUMP TO DRAW HIGH AMPS. (K)