Nowadays, carbon fibers Reinforced Polymer (CFRP) used in a very diverse industries such as civil engineering, naval industry, or aeronautical industry. This is also true for the space industry where the CFRP are composing parts of the satellites and launchers. They are known as reliable structures, structurally stable in time and in under space environment. However, these CFRP can be altered during the Assembly, Integration, and Test (AIT) phases and storage. More precisely, an alteration of the surface was reported with the formation of yellow particles after soft abrasion occurring during test or manipulations. It has been confirmed that these yellow particles are epoxy based and originate from the CFRP matrix. The degradation of the surface of CFRP leading to this phenomena has been clearly related to the exposure of CFRP structure to White LED light that are commonly used in any manufacturing, storage or integration areas as light source [1]. While usual light aging mechanism of polymeric materials is observed and characterized with ultraviolet (UV) radiations, it has been demonstrated on the present case that white LED without any UVs was enough to alter the surface. Besides, the formation of the observed particles can be problematic for the manufacturing and qualification of space products due to an increased risk of contamination. Hence, additional information on the aging process is needed to anticipate the alteration kinetics and suggest recommendations. New investigations were carried out on freshly manufactured  CFRP and pure epoxy resin samples. The materials were exposed to white LED light in order to asses the effect of the dose, the wavelengths, the atmosphere, or the influence of the nature of the polymeric resin. Along with microscopic inspection, spectroscopy, chemical and thermal analyses, the aging could be attributed to a photooxidation of the upper surface (first micrometers) of the epoxy/resin matrix. Results of this study will be presented and an easy method to identify the aging as well as good practice  to limit the risk related with this aging.