As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LIT - INFLIGHT BHM-DFW. CREW REPORTED LEFT MAIN TANK FUEL IMBALANCE. FLIGHT DIVERTED LIT LANDED WITHOUT INCIDENT. PLACARD LEFT MAIN TANK INDICATION PER MEL. FLIGHT CONTINUED ON TO DFW WITH NO FURTHER ISSUES. REPLACED FUEL QUANTITY INDICATION AT DFW ON 09/22/2011. SYSTEM GROUND CHECK NORMAL OPERATION.