As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR FAILED TO RETRACT, FLIGHT RETURNED TO DEPARTURE. TROUBLESHOT, CHECKED SENSOR LINKAGE FOR GROUND SPOILER AND LINKAGE FOR GROUND SPOILER SHUTOFF VALVE WITH NO DEFECT NOTED. GEAR SWUNG THREE TIMES, PRODUCED NO DEFECTS AS NOTED. THIS WAS A REPOSITION FLIGHT OUT OF MAINTENANCE.