As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED IN CRUISE FUEL QUANTITY INDICATION WENT TO DASHES IN ALL TANKS ELECTED TO RETURN TO DFW. REMOVED AND REPLACED THE FUEL QUANTITY GAUGING COMPUTER IAW CRJ 700 AMM 28-41-22. OPS CHECK GOOD. NO CURRENT FAULTS NOTED. AIRCRAFT RETURNED TO SERVICE.