As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING BEFORE START FLOW EICAS MESSAGE L AFT FUEL PUMP DISPLAYED EVEN WITH L AFT FUEL PUMP SWITCH ON, NOTICED L AFT FUEL BOOST PUMP CB POPPED(<P>CYCLED CB IAW AMM 20-60-01. OPS CHECK GOOD IAW AMM 28-21-00. NO FURTHER DEFECTS NOTED.</P>)