As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PTY INFLIGHT T960/01JAN - CREW REPORTED TOTAL FUEL QUANTITY SYSTEM FAILURE. RETURNED TO PTY AND LANDED WITHOUT INCIDENT. REPLACED FUEL QUANTITY PROCESSOR UNIT AND RESET AND CLEANED CONNECTORS FOR FUEL PANEL INDICATORS. SYSTEM GROUND CHECKED NORMAL OPERATION.