As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURN TO FIELD DUE TO FAILURE OF LANDING GEAR TO RETRACT. LANDING GEAR SHOCK ABSORBER FAULT. LANDING GEAR CONTROL INTERFACE UNIT (LGCIU) FAILED. THE LGCIU COMPONENT EXPERIENCED A HARD FAILURE DURING OUTPUT TESTS. REPLACED LGCIU. OPERATIONS CHECK NORMAL.