[en] The Gamma-Ray Spectrometer on the Solar Maximum Mission satellite observed γ-ray lines during the 0312 UT solar flare on 1980 June 7. The impulsive X- and γ-ray event lasted for <50 s and consisted of a series of quasi-periodic pulses on a time scale of a few seconds over the range of energies from 20 keV to 7 MeV. We report here preliminary results on the strongest γ-ray line observed at an energy of 2.232 +- 0.012 MeV with a maximum flux of (7.1 +- 1.2) x 10^-2 cm^-2 s^-1. The energy of this line and its flux time history clearly identify it to be the 2.223 MeV line from neutron capture in the solar photosphere. The observed time history of this line is consistent with a spectrum of fast neutrons, extending to > or approx. =50 MeV, produced during a approx.40 s interval overlapping the impulsive photon emission time interval. A total production of 4 x 10²⁹ neutrons is required, if they were produced isotropically