As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, CREW REPORTED AN AMBER CAS MESSAGE FOR BOTH LT AND RT FUEL QUANTITY INDICATORS. THE CREW CONSULTED WITH MECHANIC AND MADE AN AIR-TURN-BACK. MECHANIC REPLACED THE FUEL CONTROL PANEL AND ALL OPERATIONAL CHECKS WHERE GOOD. (K)