  We derive the TAP equations for the fermionic Ising spin glass. It is found
that, just as in the non-fermionic model, the conditions for stability and for
validity of the free energy are equivalent. We determine the breakdown of the
paramagnetic phase. Numeric solutions of the fermionic TAP-equations at T=0
allowed to localize a first order transition between the spin glass phase and
the paramagnetic phase at $\mu \approx 0.8$. We computed at zero temperature
the filling factor $\nu(\mu)$ and the distribution of internal fields. The
saddle-point equations resulting from the calculation of the number of
solutions to the TAP-equations were found to be much more complicated as in the
non-fermionic case.
