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The paper presents the broad study of the fatigue damage of plane wing and itsfragments. The point-site, multiple-site, multiple-element and widespread fatigue damage weretaken in consideration. It was observed that the design changes could be linked with damagespecification. In the case of the object with WFD (Widespread Fatigue Damage) the newdesigns were applied. When the object did not show WFD type of damage the changes, whichimproved the only geometry of the designs, were introduced.