As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT DURING AN ATTEMPT TO CROSS FEED FUEL FROM THE LT TANK THE LT FUEL PUMP ANNUNCIATOR CAME ON & FOLLOWED BY A LOW FUEL PRESS WARNING CAUSING RT FUEL PUMP TO COME ON. TROUBLESHOOTING IDENTIFIED THE LT FUEL BOOST PUMP TO BE FAULTY. THE PUMP WAS REPLACED WITH AN OVERHAULED UNIT.