As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FROM MSP, THE AIRCRAFT LOST A SYSTEM HYDRAULICS. DECLARED AN EMERGENCY AND RETURNED TO POINT OF ORIGIN. THE HYDRAULIC FLEX LINE ON THE LEFT ELEVATOR POWER CONTROL UNIT WAS FOUND LEAKING. THE FLEX LINE WAS REMOVED AND REPLACED, ALL FLIGHT CONTROL SYSTEMS WERE OPERATIONALLY CHECKED THROUGH SEVERAL TIMES AND CHECKED GOOD.