As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)AFTER TAKEOFF, VIBRATION OCCURRED DURING LANDING GEAR RETRACTION ALONG WITH 'GEAR DISAGREE' MESSAGE. NOSE GEAR UP, LEFT AND RIGHT MAIN GEARS IN TRANSIT AND CYCLING. GEAR SELECTED DOWN ALL INDICATIONS NORMAL. SELECTED UP PROBLEM REOCCURRED. LANDING GEAR SELECTOR VALVE REPLACED.