Control surface element for an airplane

A control surface element for an airplane, comprising:

• a composite fiber element that has a surface around which air flows;
• a mounting device for movably mounting the composite fiber element on a structural component;
• a reinforcing structure for reinforcing the composite fiber element;
• wherein said structure comprises a primary reinforcing element which is designed to receive main loads and which is connected to at least one secondary reinforcing element that is designed to receive secondary loads;
• wherein said primary reinforcing element and the secondary reinforcing element are integrally formed with the composite fiber element;
• wherein said composite fiber element has a recess which integrally forms said primary reinforcing element;
• and
• wherein the secondary reinforcing element branches off like a rib from the primary reinforcing element which is embodied as a backbone of the reinforcing structure.