  As the Fano effect is an interference phenomenon where tunneling paths
compete for the electronic transport, it becomes a probe to catch fingerprints
of Majorana fermions lying on condensed matter systems. In this work we benefit
of this mechanism by proposing as a route for that an Aharonov-Bohm-like
interferometer composed by two quantum dots, being one of them coupled to a
Majorana bound state, which is attached to one of the edges of a semi-infinite
Kitaev wire within the topological phase. By changing the Fermi energy of the
leads and the symmetric detuning of the levels for the dots, we show that
opposing Fano regimes result in a transmittance characterized by distinct
conducting and insulating regions, which are fingerprints of an isolated
Majorana quasiparticle. Furthermore, we show that the maximum fluctuation of
the transmittance as a function of the detuning is half for a semi-infinite
wire, while it corresponds to the unity for a finite system. The setup proposed
here constitutes an alternative experimental tool to detect Majorana
excitations.
