What was found
ATL/ATL - FLT 519 - AFTER TAKEOFF, AIR RETURN WHILE EXECUTING THE 'GEAR UPLATCH CHECK', THE 'RIGHT GEAR UNSAFE' LIGHT CAME ON COUPLED WITH THE 'GEAR DOOR OPEN' LIGHT. FOUND SPRING ON RT MAIN GEAR DOOR UPLATCH BROKEN. REMOVED AND REPLACED SPRING GEAR DOOR AND LIGHTS. OPS CHECK OK.