  We study the $\Lambda(1520)D_{03}$ in a chiral coupled channel approach. This
resonance appears as dynamically generated from the interaction of the decuplet
of baryons and the octet of mesons in s-wave, and its treatment is improved
here with the phenomenological inclusion of the $\bar{K} N$ and $\pi \Sigma$
channels in d-wave. Since the most important building block in the
$\Lambda(1520)$ is the $\pi \Sgs(1385)P_{13}$ channel, we study the $K^- p \to
\pi \Sgs(1385) (\pi^0 \Lambda)$ reaction in the region of the $\Lambda(1520)$
and above, and compare the results with recent experimental data. With the
coupling of the $\Lambda(1520)$ to the $\pi \Sgs$ channel predicted by the
theory we find a cross section in good agreement with the data and there is as
well agreement for the invariant mass distributions which show a neat peak for
the $\Sgs(1385)$ in the $(\pi^0 \Lambda)$ spectrum. Predictions are made of a
strong $\Lambda(1520)$ resonant peak of the cross section, as a function of the
$K^-$ momentum, in the region below the measured data which, if confirmed
experimentally, would give a stronger support to the idea of the
$\Lambda(1520)$ as a dynamically generated resonance.
