[en] Recent reanalysis of scattering data by the Nijmegen group has led to new values for the πNN coupling constants, g²_πdegree/4π and g²_π±/4π, about 6% smaller than the previously accepted values. The impact of this finding is far reaching. Since the neutron-proton A_y(θ) is dominated at low energies by the one-pion-exchange mechanism, accurate np data should provide unique information as to the magnitude of g²_π±/4π. Using a new experimental setup consisting of a shielded neutron source, a five-pair neutron detector array, a n-⁴He polarimeter, and an intense polarized source with fast spin-flipping capability, we have measured a 15 point angular distribution of the neutron-proton A_y(θ) at and incident neutron energy of 12 MeV to a statistical accuracy of 5x10^-4. We will discuss the data taking procedures, the analysis, and the corrections applied to the data. Preliminary results will be presented