Relationship between the downflowing plasma and the impacts at 1600 Å: (a), b)) AIA 171 Å images showing the finger and arc structure of the downflowing material; c) composite of dark tracks of 193 Å absorption in the fragment tips and the bright 1600 Å impact emission; d) the impact in 171 Å. Dense structures in the downflowing plasma impact the chromosphere resulting in circular brightenings in 1600 Å c). In d) the arrow points to impact 4 and the black box shows the region used for integrating the fluxes. Panel c) is the central impact in the movie associated to this figure. The region is indicated by an arrow at the end of the movie.