As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AIRCRAFT WAS GROUNDED: LEFT MAIN TANK AND TOTAL FUEL QUANTITY BLANK. DECESION MADE TO RETURN TO DFW. EMERGENCY DECLARED AND AIRCRAFT LANDED OVERWEIGHT WITHOUT INCIDENT. MAINTENANCE REPLACED LEFT MAIN TANK FUEL QUANTITY PROCESSOR #19.