The aging of aircraft is one of the most important problems in the evaluation of their airworthiness.In the structural area, fatigue behavior after years of service of aircraft is of particular importance. Therefore, this article deals with this issue. To evaluate the effect of aging on fatigue behavior, samples of the structures of several worn-out warplanes were prepared and static tensile and fatigue tests were performed on them. To evaluate the results, similar experiments were performed on the used raw materials. In this study, the fatigue behavior was performed on a 7075 aluminum alloy sheet isolated from the fuselage of the phantom aircraft with different thicknesses as well as a sample of raw aluminum alloy sheets. A total of 8 samples were tested for fatigue. Also in this research microstructure of Al-7075 alloy has been investigated and it is also characterized using Optical Microscope, SEM. The results obtained for the naturally precipitation hardened alloy showed that in metallography images, coarse precipitates can be observed. The results of the fatigue test on these samples showed a longer service life compared to the raw sample, which is consistent with the results obtained in other papers worked on this alloy.