As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEN - INFLIGHT SEA-DFW. CREW REPORTED WITH ALL FOUR WING TANK BOOST PUMP SWITCHES ON, FUEL IS BURNING OUT OF LEFT TANK FASTER THAN RIGHT CAUSING A FUEL IMBALANCE. EMERGENCY DECLARED FLIGHT DIVERTED DEN LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED FUEL CROSSFEED ACTUATOR. SYSTEM GROUND CHECK NORMAL OPERATION.