As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FUEL IMBALANCE CAUTION IN FLIGHT REPORTED. O SYSTEM WILL START TRANSFER FUEL BUT IT WILL NOT STOP AT 400 LBS. IT WILL STRAIGHT AWAY CONTINUE TRANSFERRING FUEL UNTIL THE IMBALANCE REACHES 800 LBS. WITH THE FUEL IMBALANCE CAUTION MESSAGE DISPLAYED AND EVEN THAT IT DOES NOT STOP TRANSFERRING. FQGC REPLACED AND SYSTEM TESTED SATIS.