As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPARTURE, PLACED GEAR HANDLE IN UP POSITION HAD 6 GREEN AND 6 LED INTRANSIT LIGHTS, GEAR WOULD NOT DO ANYTHING. ALL OTHER INDICATIONS NORMAL. RETURNED TO FIELD. DUPLICATING SQUAWK IN HANGAR, SLAVED IN LANDING CONTROL BOX BUT DISCREPANCY STILL EXISTS. RETURNED TO NORMAL AND REPLACED LANDING GEAR RELAY BOX. SYSTEM OPS CHECKS GOOD.