As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SDQ - INFLIGHT UNABLE TO RETRACT LANDING GEAR. TRIED BOTH SYSTEMS. RETURNED TO SDQ AND LANDED WITHOUT INCIDENT. ACCOMPLISHED FAULT RETRIEVAL OF PROXIMITY DETECTOR UNIT. SHOWED FAULT CODE 30 CHANNEL 10 WITH BOX FAIL LIGHT ON. REPLACED DETECTOR UNIT 54GB. SYSTEM GROUND CHECKED NORMAL OPERATION.