As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER CENTER FUEL TANK IS EMPTY, LEFT AND RIGHT TANKS HAVE A FUEL IMBALANCE. FUEL FLOW ON BOTH ENGINES UNREADABLE. REMOVED AND INSPECTED CENTER TANK LEFT BOOST PICKUP WITH NO DEFECTS NOTED. REMOVED AND REPLACED LEFT CENTER FUEL BOOST/OVERRIDE PUMP FOR COMPANY CONVENIENCE. LEAK AND OPERATIONAL CHECK GOOD. AIRCRAFT WAS GROUNDED.