As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEN - ON FLIGHT 4327, CLIMBING AT 8,000 FEET RECEIVED A FUEL CHANNEL 1 AND 2 FAIL CAUTION MESSAGE. RETURNED TO FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE CLEARED THE FAULT PER THE FIM TASK 28-40-00-810-804-A01. NO FURTHER DEFECTS NOTED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.