What was found
FLIGHT ORIGINATED IN ROCHESTER, MN (RST). ON TAKEOFF CLIMB, WHEN GEAR HANDLE WAS PLACED IN UP POSITION, RED LIGHTS IN GEAR HANDLE STARTED FLASHING AND AIRCRAFT STARTED VIBRATING. CYCLED LANDING GEAR WITH SAME RESULTS. CONTINUED FLIGHT AT 180 KNOTS AND LANDED AT PERRYVILLE AIRPORT (K02). FOUND BROKEN RT MLG ACTUATOR AT INBD ATTACH POINT FROZEN UP AND RUSTY. IMPROPER INSPECTION INTERVALS AND IMPROPER RIGGING OF MLG. THIS COULD HAVE BEEN A CATASTROPHIC INCIDENT. RECOMMEND FOLLOWING INSPECTION AND MAINTENANCE PRACTICES OF MM. LANDINGS, 6,518.