As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE LT FUEL BOOST PUMP, LOW PRESSURE INDICATION WAS SLOW TO REACT TO PREFLIGHT TESTING. TROUBLESHOOTING IDENTIFIED THE LT FUEL LOW PRESSURE SENSOR SWITCH WAS DEFECTIVE. THE SWITCH WAS REPLACED WITH NEW FUNCTIONAL CHECK SATISFACTORY.