What was found
TAXIED THROUGH SLUSH, AFTER TAKEOFF LEFT AND RIGHT LANDING GEAR DOORS LIGHT CAME ON. RECYCLED 5 TIMES WITH NO HELP. WHEN GEAR LEVER MOVED FROM UP TO OFF BOTH MAIN GEAR FELL DOWN WITH GREEN LIGHTS. RETURNED TO DEN. *S/D* JACKED AIRCRAFT AND ACTUATED GEAR STOPPING IN THE OFF POSITION FOR 1 MINUTE EACH TIME. GEAR CYCLED NORMALLY. NO EVIDENCE OF ICE WAS FOUND WHEN AIRPLANE WAS BROUHGT TO HANGER. NO FURTHER DISCREPANCIES SINCE THIS INCIDENT.