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Triple AGN systems are expected to be the result of the hierarchical model ofgalaxy formation. Since there are very few of them confirmed as such, wepresent the results of a new study of the triple-AGN candidate SDSSJ102700.40+174900.8 (center nucleus) through observations with$\it{GTC}$-$\it{MEGARA}$ Integral Field Unit. 1D and 2D analysis of the lineratios of the three nuclei allow us to locate them in the EW(H$\alpha$) vs.[Nii] /H$\alpha$ diagram. The central nucleus is found to be a retired galaxy(or fake AGN). The neighbors are found to be a strong AGN (southeasternnucleus, J102700.55+174900.2) compatible with a Sy2 galaxy, and a weak AGN(northern nucleus, J102700.38+174902.6) compatible with a LINER2. We findevidence that the neighbors constitute a dual AGN system (Sy2-LINER2) with aprojected separation of 3.98 kpc in the optical bands. The H$\alpha$ velocitymap shows that the northern nucleus has an H$\alpha$ emission with a velocityoffset of $\sim$-500 km s$^{-1}$, whereas the southeastern nucleus has arotating disk and H$\alpha$ extended emission at kpc scales. Chandra archivaldata confirm that the neighbors have X-ray (0.5-2) keV and (2-7) keV emission,whereas the center nucleus shows no X-ray emission. A collisional ring withknots is observed in the HST images of the southeastern nucleus. These knotscoincide with star formation regions that along with the ring are predicted ina head-on collision. In this case, the morphology changes are probably due to aminor merger that was produced by the passing of the northern through thesoutheastern nucleus.

3D spectroscopy with GTC-MEGARA of the triple AGN candidate in SDSS J102700.40+174900.8