What was found
AFTER TAKEOFF THE RIGHT MLG RED WARNING LIGHT REMAINED ON, AND WITH MLG LEVER IN OFF POSITION BOTH RIGHT MLG RED AND GREEN LIGHTS ILLUMINATED. CREW CYCLED GEAR, ALL INDICATIONS NORMAL. CHECKED RESISTANCE ON PINS FROM GEAR LOGIC SHELF TO UPLOCK AND DOWNLOCK SENSORS, NO DEFECTS NOTED. REMOVED AND REPLACED CIRCUIT CARD M986 PER MM.