As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF DUE TO GROUND SHIFT FAILURE. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. INSPECTED GROUND SHIFT LINKAGE AND CABLES WITH NO PROBLEMS FOUND. PERFORMED FULL SERVICE OF NOSE LANDING GEAR STRUT. AIRCRAFT RETURNED TO SERVICE.