Correlation measurements of neutrons and fragments have been performed in a reaction of 33.4 MeV/u 17 N on a 9Be target. Energy spectra of n and nitrogen fragments were obtained at different angles. Based on the nuclear diffraction dissociation model, the measured energy spectra and the neutron angular distributions werereproduced quite well assuming that 1 7 N was composed of 16 N and n or 15 N and 2n interacting with the nonlocal separable potential. The satisfactory agreement between the heoretical calculations and the experimental data shows that the contribution of Coulomb dissociation is negligible in the reaction conceed.