As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT SIDE FUEL GAUGE INDICATING 400-500 LBS LESS THAN LT SIDE. THE RT SIDE APPEARED TO DROP AS WE LEVELED AT CRUISE ALTITUDE OF FL400. IMBALANCE REMAINED ALL THE WAY TO BLOCK IN. R & R FUEL/FLOW QUANTITY INDICATOR WITH A UNIT WHICH O/H, OPS CHECK GOOD. WORK IAW MM 28-41-00.