What was found
AIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS DECLARED UPON ARRIVAL IN DFW DUE TO THE FLIGHT CREW REPORTING AN FUEL USED / FUEL ONBOARD DISAGREE ECAM MESSAGE. THE FLIGHT CREW REPORTED THAT THEY RECIEVED AN ECAM ALERTING TO A FUEL LEAK. THE FLIGHT CREW MONITORED FOR A 500 LB FUEL IMBALANCE AND THE CAPTAIN THOUGHT IT COULD BE A POSSIBLE COMPUTER GLITCH. THE AIRCRAFT LANDED SAFELY AT DFW AND TAXIED TO THE GATE UNDER ITS OWN POWER. MAINTENANCE PERFORMED TROUBLESHOOTING PER TSM 28-11-00-810-818C1 WITH NO FAULTS FOUND ON CHANNELS 1 AND CHANNEL 2 OF THE FQIC BITE TEST AS WELL AS NO FUEL FLUCTUATION ABOVE 2% IN ANY FUEL TANK ACCORDING TO FIM TASK 28-11-00-810-805-A. MAINTENANCE REPORTED THIS ECAM MESSAGE IS A NUISANCE MESSAGE. MAINTENANCE WAS UNABLE TO IDENTIFY A SPECIFIC PART THAT WOULD HAVE CAUSED THIS MESSAGE.