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 AFTER TAKEOFF, AIRCRAFT LANDED WITHOUT INCIDENT. TROUBLESHOT LANDING GEAR SYSTEM AND FOUND LANDING GEAR RELAY TO BE INOPERATIVE. PROBABLE CAUSE FOUND TO BE CYCLIC TIME OF PART. LANDING GEAR FUNCTIONAL CHECK SATISFACTORY AT PREVIOUS INSPECTION.