As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, THE NR 2 FUEL QUANTITY INDICATION DECREASED TO 3,500 LBS FROM 9,000 LBS. DURING RETURN TO BOI, INDICATION RETURNED TO PROPER READING. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE DEFERRED NR 2 FQIS PER MEL 28-11A.